Hemizonia congesta subsp. lutescens

(Greene) Babcock & H. M. Hall

Univ. Calif. Publ. Bot. 13: 38. 1924.

Endemic
Basionym: Hemizonia luzulifolia var. lutescens Greene Bull. Torrey Bot. Club 9: 16. 1882
Synonyms: Hemizonia citrina Greene Hemizonia congesta var. lutescens (Greene) Jepson Hemizonia congesta subsp. vernalis (D. D. Keck) Tanowitz Hemizonia lutescens Hooker & Arnott Hemizonia luzulifolia var. citrina (Greene) Jepson Hemizonia multicaulis Hemizonia multicaulis subsp. vernalis D. D. Keck
Treatment appears in FNA Volume 21. Treatment on page 293. Mentioned on page 291, 292.

Leaves pubescent, villous, or sericeous (distal with hairs not notably longer at margins), all or distal glandular. Heads in paniculiform arrays. Peduncles 0 or 1–20 mm, bracts not surpassing phyllaries. Calyculi 0. Phyllaries 4.5–6.5 (–8) mm, apices usually shorter than bodies. Ray-florets 5–14; laminae yellow, abaxially purple-veined. Cypsela widths 0.4–0.63 times lengths. 2n = 28.


Phenology: Flowering Apr–Dec.
Habitat: Grassy slopes, flats, barrens, openings in woodlands or chaparral, often on serpentine
Elevation: 0–500 m

Discussion

Subspecies lutescens occurs in the southern, outer North Coast Ranges and San Francisco Bay area and on the immediate coast, mostly north of the Golden Gate.

Selected References

None.

Lower Taxa

None.
not tailed +, rounded +  and obtuse +
pale +  and dark +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
paniculiform +
indeterminate +  and determinate +
Bruce G. Baldwin +  and John L. Strother +
(Greene) Babcock & H. M. Hall +
decurrent +
Hemizonia luzulifolia var. lutescens +
straight +
greater than lengths +
inconspicuous +
compound +  and simple +
linear to linear-elliptic +
lobed;usually spatulate;oblanceolate +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
yellow +  and white +
hairy +  and glabrous +
fusiform +, clavate +, obpyramidal +, terete +, compressed +  and obcompressed +
1/(0.4-0.63) +
fertile +  and bisexual +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
fertile +  and bisexual +
0–500 m +
glabrous +, villous +, sericeous +, strigose +, hirsute +, hispidulous +  and puberulent +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Grassy slopes, flats, barrens, openings in woodlands or chaparral, often on serpentine +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.3 cm3 mm <br />0.003 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.35 cm3.5 mm <br />0.0035 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
hemispheric;more or less urceolate or globose +
0.3 cm3 mm <br />0.003 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
purple-veined +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
5 cm50 mm <br />0.05 m <br /> (17.5 cm175 mm <br />0.175 m <br />) +
petiolate +  and sessile +
alternate +  and opposite +
sericeous +, villous +  and pubescent +
deltate +
entire +  and serrulate +
2-carpellate +
persistent +
Flowering Apr–Dec. +
0.65 cm6.5 mm <br />0.0065 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
5 +  and 14 +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
alternate +  and opposite +
Univ. Calif. Publ. Bot. +
gibbous +  and obcompressed +
0.5 cm5 mm <br />0.005 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
exalbuminous +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Hemizonia citrina +, Hemizonia congesta var. lutescens +, Hemizonia congesta subsp. vernalis +, Hemizonia lutescens +, Hemizonia luzulifolia var. citrina +, Hemizonia multicaulis +  and Hemizonia multicaulis subsp. vernalis +
Hemizonia congesta subsp. lutescens +
Hemizonia congesta +
subspecies +
cylindric +
toothed +  and entire +
5 cm50 mm <br />0.05 m <br /> (80 cm800 mm <br />0.8 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
shrub +  and subshrub +