Hymenothrix loomisii

S. F. Blake

Proc. Biol. Soc. Wash. 40: 49. 1927.

Endemic
Treatment appears in FNA Volume 21. Treatment on page 387.

Annuals or biennials, 30–70 cm. Phyllaries 8 (–12), mostly linear to narrowly oblanceolate. Rays 0. Disc-florets 10–20; corollas creamy to bright-yellow, mostly 4–4.5 mm, lobe lengths 0.3–1 times throats; anthers yellowish. Cypselae 2.5–4+ mm; pappus-scales 3–5 mm. 2n = 24.


Phenology: Flowering summer–fall.
Habitat: Open, often disturbed, places
Elevation: 900–2100 m

Discussion

Occurrences of Hymenothrix loomisii in California have been geographically scattered, sporadic, and nonpersistent introductions.

Selected References

None.

Lower Taxa

None.
... more about "Hymenothrix loomisii"
not tailed +, rounded +  and obtuse +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
corymbiform +  and paniculiform +
indeterminate +  and determinate +
John L. Strother +
S. F. Blake +
decurrent +
compound +  and simple +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
connate +  and distinct +
creamy +  and bright-yellow +
stipitate-glandular +  and hairy +
0.4 cm4 mm <br />0.004 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
4-5-angled +  and obpyramidal +
fertile +  and bisexual +
fertile +  and bisexual +
Ariz. +, Calif. +  and Nev. +
900–2100 m +
hairy +  and glabrate +
scabrellous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
campanulate +  and cylindric +
Open, often disturbed, places +
discoid +  and radiate +
singly +  and radiant +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
obconic;hemispheric +
cauline +  and basal +
lance-linear +  and lance-oblong +
dentate to pinnatifid or palmatifid +  and entire +
2-carpellate +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
persistent +
aristate +
Flowering summer–fall. +
Proc. Biol. Soc. Wash. +
bearing subulate enations +, hairy +  and bristly +
knobby;convex;flat +
scarious-margined +
distinct +
12 +  and 18 +
narrowly lanceolate +  and subulate +
exalbuminous +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Undefined (tribe Undefined) subtribe Bahiinae +  and Undefined (tribe Undefined) subtribe Palafoxiinae +
Hymenothrix loomisii +
Hymenothrix +
species +
cylindric +
80 cm800 mm <br />0.8 m <br /> (300 cm3,000 mm <br />3 m <br />) +
1 cm10 mm <br />0.01 m <br /> (80 cm800 mm <br />0.8 m <br />) +
toothed +  and entire +
70 cm700 mm <br />0.7 m <br /> (150 cm1,500 mm <br />1.5 m <br />) +
biennial +  and annual +
30 cm300 mm <br />0.3 m <br /> (70 cm700 mm <br />0.7 m <br />) +
80 cm800 mm <br />0.8 m <br /> (300 cm3,000 mm <br />3 m <br />) +
shrub +  and subshrub +