Isocoma drummondii
Erythea 2: 111. 1894.
Common names: Drummond’s jimmyweed
Basionym: Linosyris drummondii Torrey & A. Gray Fl. N. Amer. 2: 233. 1842
Synonyms: Haplopappus drummondii (Torrey & A. Gray) S. F. Blake Isocoma megalantha Shinners
Herbage glabrous, not resinous. Leaf-blades narrowly oblong to oblanceolate-oblong, 13–50 mm, margins usually entire, sometimes distally toothed (shallow teeth in 1–3 pairs). Involucres (5.5–) 6.5–8 × 4.5–5.5 (–7) mm. Phyllary apices usually green, not aristate, usually strongly gland-dotted, without resin pockets. Florets (18–) 22–34; corollas 5.8–7.5 mm. Cypsela ribs not forming hornlike extensions.
Phenology: Flowering (Mar–)May–Jul.
Habitat: Coastal habitats, often on beach dunes, sand or less commonly clay, brushy prairies, scrub woods, often with mesquite
Elevation: 0–20 m
Distribution
Tex., Mexico (Tamaulipas)
Discussion
Selected References
None.
Lower Taxa
None.
"thick" is not a number.
... more about "Isocoma drummondii"
introrse +
connate +
green +
distinct +
herbaceous +
scarious +
hirsute +
papillate +
continuous +
decurrent +
1-nerved +
linear;oblanceolate or obovate +
ribbed +
cluster +
stigmatic +
barbellate +
persistent +
40;50 +
unequal +
absent +
Drummond’s jimmyweed +
yellow +
absent +
monomorphic +
5-11-ribbed +
dimorphic +
staminate +
straight +
hornlike +
gland-dotted;gland-dotted +
distinct +
proximal +
22;34 +
bisexual +
dispersed +
Coastal habitats, often on beach dunes, sand or less commonly clay, brushy prairies, scrub woods, often with mesquite +
discoid +
singly +
indeterminate +
not resinous +
glabrous +
surrounding +
obconic;turbinate or campanulate +
sessile +
alternate +
cauline +
erect +
deltate +
toothed +
scarious +
2-carpellate +
inferior +
attached +
anatropous +
persistent +
tough +
thick +
absent +
connate +
1-nerved +
persistent +
distinct +
falling +
unequal +
not aristate +
Erythea +
1894 +
absent +
sterile +
epaleate +
pitted +
concave;usually flat;conic +
fibrous +
exalbuminous +
modifed +
2;4;6 +
alternate +
resinous +
gland-dotted +
erect +
triangular +
2-branched +
glabrous +
Isocoma drummondii +
Isocoma +
species +
corymbiform +
goblet--shaped +
ampliate +
longer +
dark orange-resinous +
perennial +
subshrub +