Hymenothrix wislizeni

A. Gray

Mem. Amer. Acad. Arts, n. s. 4: 102. 1849.

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

Annuals, 30–70 cm. Phyllaries 8 (–12), mostly linear to narrowly oblanceolate. Rays 3–8. Disc-florets 15–30; corollas creamy to bright-yellow, mostly 5–7 mm, lobe lengths 0.3–1 times throats; anthers yellowish. Cypselae 3–5 mm; pappus-scales 1.5–6 mm. 2n = 24, 48.


Phenology: Flowering summer–fall.
Habitat: Open slopes and washes, sandy or gravelly soils
Elevation: 600–1500 m

Distribution

V21-973-distribution-map.gif

Ariz., N.Mex., Mexico (Chihuahua), Mexico (Sonora)

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Hymenothrix wislizeni"
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 +
A. Gray +
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 +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
4-5-angled +  and obpyramidal +
fertile +  and bisexual +
fertile +  and bisexual +
Ariz. +, N.Mex. +, Mexico (Chihuahua) +  and Mexico (Sonora) +
600–1500 m +
hairy +  and glabrate +
scabrellous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
campanulate +  and cylindric +
Open slopes and washes, sandy or gravelly soils +
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 +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
persistent +
aristate +
Flowering summer–fall. +
Mem. Amer. Acad. Arts, n. s. +
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 wislizeni +
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 />) +
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 +