Helianthus californicus

de Candolle in A. P. de Candolle and A. L. P. P. de Candolle

in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 5: 589. 1836.

Common names: California sunflower
Treatment appears in FNA Volume 21. Treatment on page 167. Mentioned on page 146.

Perennials, 150–350 cm (rhizomatous). Stems erect, glabrous (glaucous). Leaves mostly cauline; mostly alternate; petioles 0–3 cm; blades (light to dark green, 3-nerved distal to bases), lanceolate, 10–20 × 2.5–6 cm, bases ± cuneate, margins entire or subentire, abaxial faces hispid to hirsute, glanddotted. Heads 3–10. Peduncles (1–) 3–15 cm (glanddotted). Involucres broadly hemispheric, 10–25 mm diam. Phyllaries 25–35 (loose), lanceolate, 8–15 × 3–5 mm (notably surpassing discs), (margins sometimes ciliate) apices acute to attenuate, abaxial faces hispidulous to glabrate, glanddotted. Paleae 10–11 mm, 3-toothed (apices acute, hispidulous). Ray-florets 12–21; laminae 15–30 mm. Disc-florets 50+; corollas 6–8 mm, lobes yellow; anthers reddish to dark, appendages reddish-brown. Cypselae 4.5–5 mm, glabrate; pappi of 2 aristate scales 3–4 mm. 2n = 102.


Phenology: Flowering summer–fall.
Habitat: Stream banks, wet meadows, freshwater marshes
Elevation: 0–1600 m

Distribution

V21-406-distribution-map.gif

Calif., Mexico (Baja California)

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Helianthus californicus"
hispidulous +  and glabrate +
not tailed +, rounded +  and obtuse +
reddish +  and dark +
pale +  and dark +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
reddish-brown +
usually deltate +  and lanceolate +
spiciform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
Edward E. Schilling +
de Candolle in A. P. de Candolle and A. L. P. P. de Candolle +
cuneate +
10 cm100 mm <br />0.1 m <br /> (20 cm200 mm <br />0.2 m <br />) +
lanceolate +
2.5cm;6cm +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
California sunflower +
reddish +  and yellow +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
compressed +  and obpyramidal +
fertile +  and bisexual +
fertile +  and bisexual +
Calif. +  and Mexico (Baja California) +
0–1600 m +
hairy +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Stream banks, wet meadows, freshwater marshes +
in more or less corymbiform , paniculiform or spiciform , arrays +  and singly +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
1 cm10 mm <br />0.01 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
hemispheric +
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
sessile +  and petiolate +
triangular +
serrate +  and entire +
subentire +  and entire +
2-carpellate +
3-toothed +
1 cm10 mm <br />0.01 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
persistent +
coroniform +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
3 cm30 mm <br />0.03 m <br /> (15 cm150 mm <br />0.15 m <br />) +
0 cm0 mm <br />0 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Flowering summer–fall. +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
25 +  and 35 +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. +
bearing subulate enations +, hairy +  and bristly +
flat;slightly convex +
aristate +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
exalbuminous +
procumbent +  and decumbent +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Undefined (tribe Undefined) subtribe Lagasceinae +
Helianthus californicus +
Helianthus +
species +
campanulate +
toothed +  and entire +
300 cm3,000 mm <br />3 m <br /> (500 cm5,000 mm <br />5 m <br />) +
150 cm1,500 mm <br />1.5 m <br /> (350 cm3,500 mm <br />3.5 m <br />) +
shrub +  and subshrub +