| | | |
Alkali Bulrush
Bolboschoenus maritimus
- CA Bloom Aug - Sep
- Flat, narrow stems to about four feet tall.
- Found near the edge of salt water.
- Widespread in California and around the world.
- CA native
|
Flowers dark brown with tan bristles.
|
Flowers group in the joint of flat stems.
|
Stands erect with noticeable brown flowers
|
Alkali Heath
Frankenia salina
- CA Bloom May - Oct
- Small pink 5-petaled trumpet flowers with pointed petals grow from leaf nodes.
- Opposite leaves
- Found in coastal salt-marsh, it can excrete salt through its leaves.
- CA native
|
Tiny 5-petaled white or pink flowers.
|
Leaves are opposite, have a strong central vein, smooth edges, and a pointed tip.
|
Can grow to 18 inches, often prostrate.
|
Alkali Mallow
Malvella leprosa
- CA Bloom Apr - Oct
- White to yellow mallow-shaped flower grows pink with age.
- Grows along the ground to perhaps 16 inches long, on hairy stems.
- Leaves are alternate, hairy, and with toothed or wavy margins.
- Grows quickly beside agricultural fields.
- CA native
|
5 petals form a cup, starting out white or yellow and turning pink with age. Stem is hairy and grows along the ground.
|
Leaves have wavy edges, growing to over an inch wide.
|
Grows rapidly in alkaline (salty) soils. Often found near agricultural fields.
|
Alkali Weed
Cressa truxillensis
CA Bloom May - Jun
White flower
Five petals
Alternate leaves
CA native
|
|
|
|
Almond
Prunus dulcis
- CA Bloom Feb - Mar
- White flowers cover the tree in a showy display in the spring.
- Grows to 15 feet with a rounded shape.
- Alternate leaves are deciduous.
- Not CA native
|
Narrow leaves grow to about 5."
|
Covering opens up at maturity.
|
Pink blossoms in the spring - this tree is widely cultivated in the central valley.
|
American Vetch
Vicia americana
- CA Bloom May - Jun
- Flowers with pink, violet and white parts.
- Tendrils, modified leaves, allow the plant to climb on other plants.
- Alternate compound leaves.
- A widespread understory plant.
- CA native
|
Purple pea-like flowers
|
Alternate compound leaves.
|
Vine grows to a foot long. One inch pea pods for fruit.
|
American Vetch (1)
Vicia americana ssp. americana
- Height 1 - 2 ft.
- CA Bloom May - Jun
- Flowers with pink, violet and white parts.
- Tendrils, modified leaves, allow the plant to climb on others.
- The vine stem can grow to 4 feet long, but the plant is generally under 2 feet tall.
- Alternate compound leaves.
- Widespread understory plant.
- CA native
|
Small but bright flowers
|
Lots of small compound leaflets.
|
Long thin leaves and purple flowers make this a vetch.
|
Annual Beard Grass
Polypogon monspeliensis
|
Annual Beard Grass is topped by large, fluffy spikes. They're framed by flat, rough, green leaves to 8" long.
|
Soft, dense spikelets are green until they mature. There are lots of spikelets in the spike, each producing 3 awns.
|
Long awns let light through around the edge but the center is opaque.
|
Annual Blue Grass
Poa annua
- Annual Bunch Grass 1-8"
- 3-6 florets per spikelet
- No awns
- CA Bloom Apr - May
- Poa is an ancient Greek word for "fodder".
- This sweet grass is grazed by farm animals.
- Seeds are distributed 8 months a year.
- Not CA native
|
Bright green or yellow-green leaves are soft, generally flat and come to a blunt point at the tips.
|
Like all Bluegrasses, the inflorescence is open and spikelets have no awns. Florets are membranous.
|
Annual Blue Grass grows quickly in disturbed areas. Plants are small but have many leaves.
|
Annual Hairgrass
Deschampsia danthonioides
|
This meadow grass has spreading spikelets with awns, giving it a fuzzy appearance, thus Hairgrass. Spikelets sometimes have purple tips.
|
Hairgrass grows singly or in loose clumps. Spikelets grow on narrow, spreading, ascending branches.
|
Two large bracts surround 1-3 florets. Each floret has a long awn that bends in the middle.
|
Annual June Grass, Bristly Koeleria
Koeleria gerardii
CA Bloom Apr - Jul
Not CA native
|
|
|
|
Annual Stinging Nettle
Urtica urens
- CA Bloom Jan - Apr
- Also called Dwarf Nettle, this plant grows to about 2 feet tall.
- Stinging nettles, in general, produce a stinging sensation when touched. However, EFlora says that this specie's sting is not very strong.
- Found in shady areas.
- Not CA native
|
Leaves are hairy, dark green, have large teeth, and end in a point.
|
Leaves are opposite. Veins make indentations in the leaves.
|
Small green flowers look like little balls.
|
Aquatic Pygmy Weed
Crassula aquatica
- CA Bloom Mar - Jun
- This tiny succulent plant grows in areas that are frequently submerged in water.
- Pink flowers have four petals and are less than 1/4" wide.
- Leaves are opposite, succulent, thin and pointed.
- Found in wetlands across California.
- CA native
|
A succulent with tiny short pointed leaves less than 1/4 inch long.
|
Likes to be submersed in water (salt or fresh). Grows erect when exposed to air.
|
Tiny pink flower less than 1/4 inch wide. Leaves can be red as well as green.
|
Arroyo Lupine
Lupinus succulentus
- Grows to 3 ft. on erect, sparsely hairy stems.
- CA Bloom Feb - May
- This annual flower produces 6" clusters of purple pea flowers.
- Wide-tipped leaflets grow on long (2-6") stalks.
- It is abundant in open or disturbed areas, and is often seeded on road banks.
- CA native
|
Look for radial leaflets that are wider near the tip. Their fleshy top feels rubbery.
|
Here's a closeup of the flower. The yellow pistil is just sticking out of the right-hand keel. The left part is the banner.
|
Stacks of whorled flowers have white banner spots that turn magenta with age.
|
Arroyo Willow
Salix lasiolepis
- Height 7 - 35 ft.
- CA Bloom Feb - May
- This is the most common willow in California.
- It's deciduous and is found near water.
- Look for narrow leaves that are wider near the tip than at the base.
- CA native.
|
Leaves are about 5 inches long, smooth-sided and narrow. They're pale/hairy underneath, and wider near the tip than near the base.
|
Classic pussies with yellow stamens. The buds are fused together (not overlapping) before they open.
|
This willow has many trunks, sometimes growing as a tree, and sometimes as a tangled shrub.
|
Australian Fireweed
Senecio glomeratus
- CA Bloom Apr - Sep
- Yellow composite flowers group at the top of a branched 6 foot plant.
- Leaves are alternate and deeply lobed.
- Found in disturbed sites below 1,000 feet, generally near the coast.
- Not CA native
- Moderately Invasive
|
Composite flowers group at the top of the stem. They have no "petals" ( ray flowers).
|
Leaves clasp the stem, grow to about 6 inches, and are deeply lobed.
|
Grows to 6 feet or so, with lots of flowers near the top of the stem.
|
Baby Blue Eyes
Nemophila menziesii var. menziesii
- CA Bloom Mar - Jun
- Distinctive with blue petals, white center and black dots in the center.
- Opposite leaves are lobed, especially near the base.
- Found in grasslands and woodland.
- CA native
|
Pale blue to dark blue petals.
|
Five separate blue petals with a white center, usually with black dots.
|
Grows a couple of inches above the ground, with opposite, lobed leaves.
|
Bearded Clover
Trifolium barbigerum
- Height to 1 ft.
- CA Bloom Feb - May
- Brown, pink, violet, white flower
- Irreg petals
- Alternate leaves
- CA native
|
|
|
|
Bearded Sprangletop
Leptochloa fusca ssp. fascicularis
CA Bloom Jun - Oct
CA native
|
|
|
|
Beardless Wild Rye
Elymus triticoides
|
This rye has 2-ranked spikelets that connect directly to the stem. There is space between each alternating spikelet.
|
Hollow stems (like straws) connect at solid joints. Leaves are about 1/4" wide and a foot long.
|
Prominent blue-green leaves are 4-12" long and grow away from the stem. Found in moist habitats with heavy soils.
|
Bee Plant
Scrophularia californica
- Height 2 - 4 ft.
- CA Bloom Feb - May
- Bee plant is tall, with prominent triangular leaves and tiny brownish-red flowers.
- Small flowers are less than 1/2" across and have a nectar disk to reward pollinating bees.
- Opposite leaves have stalks that connect to the stem.
- Found in moist places below 8,000 feet.
- CA native
|
This view of the flower from below shows two rounded petals on top, two side petals, and one folded out like a tongue.
|
A square stem supports large, opposite, toothed leaves. This might make you think "Mint" but it's not.
|
Bee Plant grows several feet high with opposite, narrow leaves sticking straight out. Flowers are on horizontal stalks near the top.
|
Big Leaf Mistletoe
Phoradendron leucarpum ssp. macrophyllum
Shrub
Green flower
Tiny petals
Opposite leaves
CA native
|
|
|
|
Big Scale Balsam Root
Balsamorhiza macrolepis
CA Bloom Mar - Jun
Yellow flower
Many petals
Basal leaves
Slopes
CA native Endangered (CNPS 1B)
|
|
|
|
Big Squirrel Tail Grass
Elymus multisetus
|
Dense inflorescences with long, purplish awns resemble squirrel tails, especially when they mature.
|
Here's a closeup of a squirrel tail. It's crowded with spikelets, each producing 8-22 awns!
|
Leaves are narrow and long. Found in open, sandy or rocky areas.
|
Big Tarweed
Blepharizonia plumosa
CA Bloom Jul - Oct
CA native Endangered (CNPS 1B)
|
|
|
|
Big-Leaf Maple
Acer macrophyllum
- Height 50 - 100 ft.
- CA Bloom Apr - May
- You'll probably notice the maple leaves first; they're large and grow opposite each other.
- Leaves are green in the summer, yellow in the fall, and absent in the winter.
- In spring, small greenish-yellow flowers hang in clusters below newly emerging leaves.
- Big Leaf Maples do well near water and in dappled shade.
- CA native
|
Leaves are quite large, up to 12" wide, with deep indents. No other maple in the U.S. has leaves this big.
|
Flower clusters droop from emerging leaves.
|
Two winged fruits grow side by side, creating a helicopter-like lift when they're blown away on the wind.
|
Bioletti Cudweed
Pseudognaphalium biolettii
- CA Bloom Jan - May
- Flowers are white on the outside and yellow on the inside.
- Alternate leaves are wide at the base and clasp the stem.
- Leaves and stem are covered with short fine hair, not sticky but sharply scented.
- Found in coastal chaparral and in mixed evergreens in the foothills.
- CA native
|
Shiny papery phyllaries surround tiny yellow aster flowers.
|
Many tiny brown fruits.
|
Grows to 3 feet, sometimes woody at the base.
|
Bird's Eyes
Gilia tricolor
CA Bloom Apr - Aug
Pink, violet, white flower
Five petals
Alternate leaves
Slopes
CA native
|
|
|
|
Bird's Foot Fern
Pellaea mucronata var. mucronata
- Grow near rocks on hot dry slopes.
- Frond leaves curl over.. with smooth edges, pointed at the end.
- Often full of small spores underneath.
- CA native
|
Grows on hot, exposed rocks and rocky slopes.
|
Individual leaves are separated.
|
Leaves curl under, protecting spores.
|
Bird's Foot Lotus
Acmispon brachycarpus
- Height 6 in. - 1 ft.
- CA Bloom Mar - Jun
- Yellow flower
- Pea petals
- Alternate leaves
- CA native
|
|
|
|
Bird's Foot Trefoil
Lotus corniculatus
- Height to 8 in.
- CA Bloom May - Jul
- Tiny fruit clusters look like a bird's foot.
- Short, thin compound leaves make bundles along the stem.
- Find it in open grasslands, wetlands, and compacted soil along roads and trails.
- Other Trefoils
- Not CA native
|
Tiny pea flowers cluster at the end of the stem.
|
Each plant is small. See fruit pods on the left, compound leaves in the middle, and a flower cluster on the right.
|
Colonies of Bird's Foot Trefoil can be prominent in grasslands. It is sometimes vine-like, with prostrate stems up to 20 inches.
|
Black Cottonwood
Populus trichocarpa
- CA Bloom Feb - Apr
- A large riparian tree with alternate leaves
- Leaf stems are round (Fremont Cottonwood's is flattened).
- Widely distributed in California, except the central valley.
- CA native
|
Leaf tops are glossy dark-green. Undersides are pale. Leaves are long and pointed, with small teeth on the edge.
|
Alternating secondary veins connect to a central one.
|
Grows near running water. Trunks get very large, and the tree height often exceeds 100 feet.
|
Black Locust
Robinia pseudoacacia
CA Bloom Mar - Jun
White flower
Pea petals
Alternate leaves
Not CA native Somewhat Invasive
|
|
|
|
Black Mustard
Brassica nigra
CA Bloom Apr - Jul
Yellow flower
Four petals
Alternate leaves
Not CA native Moderately Invasive
|
|
|
|
Black Oak
Quercus kelloggii
- CA Bloom May - Jun
- This majestic tree is a keystone species, providing habitat and food to many animals.
- Black Oak is the only deciduous California oak with bristle-tipped lobes.
- CA native
|
Deciduous leaves have pointy lobes with bristles at their tips. They're darker on top than on the bottom.
|
In spring, early leaves are red and velvety. Catkins of male flowers hang from leaf axils, getting ready to disperse pollen on the wind.
|
A stout trunk supports many heavy, ascending branches. Branches decay and hollow out, providing den and nesting sites.
|
Blackwood Acacia
Acacia melanoxylon
- Height 50 - 100 ft.
- CA Bloom Feb - Mar
- This acacia tree has twisted reddish-brown pods.
- The trunk has high levels of tannin, which causes dark stains when people handle it (thus Blackwood).
- Generally found in coastal disturbed areas.
- Not CA native
- Somewhat Invasive
|
Pale yellow spherical flowers show many stamens. These develop into reddish-brown pods.
|
Mature leaves are generally wide but occasionally have divided fern-like tips. Young leaves are divided too.
|
Blackwood Acacia grows to be a substantial tree.
|
Blow Wives
Achyrachaena mollis
- Height 2 in. - 2 ft.
- CA Bloom Apr - May
- This eye-catching bright-white flower is not a flower at all. As you look closer, you'll see that the "petals" are actually the flat scales of a seed head.
- A California endemic, this plant grows natively nowhere else in the world.
|
Here is the classic Blow Wives look. Flat, scaly pappus forms a wind parachute for each seed.
|
Yellow or orange ray florets point straight up. Inside them, many disc florets grow without petal-like rays.
|
Leaves are narrow and grow up to 6" long. They're erect and fuzzy.
|
Blue Blossom
Ceanothus thyrsiflorus var. thyrsiflorus
- Height to 30 ft.
- CA Bloom Mar - May
- Blueblossom is an evergreen shrub with a prodigious display of sweet-smelling flowers.
- Look for grooves running the length of the stem.
- Grows well on poor soil. Found in a variety of habitats.
- CA native
|
Blueblossom is full of tiny, fragrant flowers when it blooms in spring.
|
Alternate leaves have 3 veins that join at the base. The underside is dull and the top is shiny.
|
Leaves are shiny and dark green on top, growing to 2 inches long. They have glandular bumps on the side.
|
Blue Dicks
Dipterostemon capitatus
- CA Bloom Feb - Apr
- Look for a tight bunch of 6-petaled flowers on a single stem, about 1 foot tall.
- Flowers can be purple, pink or white.
- This common springtime flower is widespread where there is sun.
- Compare to Ookow
- CA native
|
A tight bunch of 6-petaled flowers appears at the top of a tall, wavy stalk.
|
The centers of the flowers feature a forked, white sheath that surrounds yellow-tipped stamens.
|
Long, narrow leaves grow from the base of the plant. Below, the roots connect to food-storing corms.
|
Blue Elderberry
Sambucus mexicana
- CA Bloom Mar - Jul
- A large shrub with clusters of white flowers, plus compound leaves indicate an Elderberry.
- Berries are black but appear blue because of a waxy covering.
- Grey bark with vertical furrows.
- Common on stream banks and open places in forests.
- CA native
|
White flat-topped clusters of flowers are easy to spot.
|
Berries with a waxy covering makes them look powdery.
|
Compound leaves with 5 - 9 toothed leaflets.
|
Blue Gum
Eucalyptus globulus
- Height to 200 ft.
- CA Bloom Oct - Mar
- Flower nestled between stem and leaf.
- Leaves long, thin and dark green.
- Common, found in disturbed areas.
- Not CA native
- Somewhat Invasive
|
Flower has many white stamens surrounding a central knob, and smells of honey.
|
Mature leaves are narrow and curved, growing to a foot long. Woody fruits with 5 notches, grow to 1 inch across.
|
Heavy trunks with bark that peals in large strips.
|
Blue Oak
Quercus douglasii
- Height 20 - 65 ft.
- CA Bloom Mar - May
- Blue-green leaves with wavy edges, plus corn flake bark, are quick way to identify this oak.
- Leaves are relatively small and sparse, allowing it to tolerate more sun and dryer places than other California deciduous oaks.
- CA native. Found only in California.
|
Leathery blue-green leaves often have shallow lobes. They have a short petiole (stalk) and are generally 2 - 3 inches long.
|
Bark is pale and checkered by medium-size cracks. It reminds me of corn flakes.
|
This moderately sized oak has a heavy trunk and branches. It's common in dry, hot places that have some water.
|
Blue-Eyed Grass
Sisyrinchium bellum
- Height 1 - 2 ft.
- CA Bloom Mar - May
- This is not a grass but an iris.
- At the top of each stem are violet flowers with darker purple lines leading to a yellow center.
- It's common in open, usually moist areas.
- CA native. Endemic to the California Floristic Province.
|
Beautiful 1/2" wide flowers have blue to violet petals and a golden yellow center to guide pollinators in.
|
Leaves are grass-like, narrow with parallel veins.
|
The ovary is below the flower and, if pollinated, develops into a capsule-like fruit.
|
Boccone's Sand Spurry
Spergularia bocconi
CA Bloom Apr - May
Pink, white flower
Five petals
Opposite leaves
Not CA native
|
|
|
|
Bog Yellowcress
Rorippa palustris ssp. palustris
CA Bloom Apr - Jun
Yellow flower
Four petals
Alternate leaves
CA native
|
|
|
|
Bowlesia
Bowlesia incana
CA Bloom Mar - Apr
Green, white flower
Five petals
Opposite leaves
Slopes
CA native
|
|
|
|
Box Elder
Acer negundo
- Height 25 - 66 ft.
- CA Bloom Feb - Mar
- Opposite leaves
- Streambanks
- CA native
|
|
|
|
Bracted Allocarya
Plagiobothrys bracteatus
CA Bloom Apr - May
White flower
Five petals
Alternate, basal leaves
CA native
|
|
|
|
Branched Indian Clover
Trifolium dichotomum
CA Bloom Mar - May
Black, brown, pink, white flower
Irreg petals
Alternate leaves
CA native
|
|
|
|
Branching Phacelia
Phacelia ramosissima
CA Bloom May - Aug
Violet, white flower
Five petals
Alternate leaves
Coastal
CA native
|
|
|
|
Brass Buttons
Cotula coronopifolia
CA Bloom May - Oct
Green, yellow flower
Tiny petals
Alternate leaves
Not CA native Somewhat Invasive
|
|
|
|
Brewer's Calandrinia
Calandrinia breweri
CA Bloom Mar - Jun
Pink flower
Five petals
Alternate leaves
Disturbed
CA native Uncommon (CNPS 4)
|
|
|
|
Brewer's Ragwort
Packera breweri
CA Bloom Apr - May
Yellow flower
Many petals
Alternate, basal leaves
Slopes
CA native
|
|
|
|
Brewer's Rock Cress
Boechera breweri
CA Bloom Feb - May
Violet flower
Four petals
Alternate, basal leaves
Slopes
CA native
|
|
|
|
Brewer's Rockcress
Boechera breweri ssp. breweri
CA Bloom Feb - May
Violet flower
Four petals
Alternate, basal leaves
CA native
|
|
|
|
Brewer's Saltbrush
Atriplex lentiformis
CA Bloom Jun - Jul
Yellow flower
Tiny petals
Alternate leaves
Coastal salt-marsh
CA native
|
|
|
|
Bristly Linanthus
Leptosiphon aureus
CA Bloom Mar - Jun
Pink, white, yellow flower
Five petals
Opposite leaves
CA native Uncommon (CNPS 4)
|
|
|
|
Bristly Ox-Tongue
Helminthotheca echioides
- Height to 7 ft.
- CA Bloom Jun - Dec
- A tall dandelion-like flower, covered in bristles.
- Leaves have large bumps on them.
- Lots of seed in the fall - you'll see it blowing in the air.
- Not CA native.
- Somewhat Invasive
|
Leaves have stiff bristles and bumps, giving it its name. Dandelion-like flowers top each branch.
|
Dandelion-like flowers are surrounded by distinctive, triangular, upward pointing, bristly green bracts.
|
Plants are tall, with many branches.
|
Brittle Leaf Manzanita
Arctostaphylos crustacea ssp. crustacea
- Height 3 - 10 ft.
- CA Bloom Jan - Mar
- Leaves stick out from the hairy stem.
- Alternate leaves dark green above, and light green below.
- Big bunches of tiny flowers, hanging down from stalk-like pedicels.
- Fruit is red and spherical with flat spot. Not sticky.
- CA native
|
Leaves are relatively big (2" long). Flowers are tiny in large bunches.
|
Early flower development shows red bracts. Leaves of ssp. crustacea have almost no hair on the bottom.
|
Look for a prominent burl at the base of the plant.
|
Broadfruit Bur Reed
Sparganium eurycarpum
CA Bloom Jun - Jul
Black, brown, green, pink, white, yellow flower
Tiny petals
Alternate leaves
CA native
|
|
|
|