Melampodium leucanthum
Fl. N. Amer. 2: 271. 1842.
Illustrated
Perennials or subshrubs, 12–40 (–60) cm. Leaf-blades lanceolate, linear-oblong, or linear, 20–35 (–45) × 1–10 (–12) mm, lengths 3–8+ times widths, pinnately lobed, lobes 1–6, ultimate margins entire. Peduncles 3–7 cm. Outer phyllaries 5, connate 1/2–3/5 their lengths, ovate, 5–7 mm. Ray-florets 8–13; corollas cream-white (sometimes purplish abaxially), laminae oblongelliptic, 7–13 × 2.5–8 mm. Disc-florets 25–50. Fruits 1.5–2.6 mm. 2n = 20, 40.
Phenology: Flowering Mar–Oct.
Habitat: Open sites, grasslands, roadcuts, arid or desert scrublands
Elevation: (200–)1000–2000(–2500) m
Distribution
Ariz., Colo., Kans., N.Mex., Okla., Tex., Mexico (Chihuahua), Mexico (Coahuila), Mexico (Sonora)
Discussion
Selected References
None.
Lower Taxa
None.
... more about "Melampodium leucanthum"
introrse +
connate +
herbaceous +
scarious +
absent +
hirsute +
papillate +
continuous +
decurrent +
lance-linear +
lance-elliptic +
lobed;rhombic;ovate;rhombic;ovate;linear-oblong;linear;lanceolate;deltate +
winged;ribbed;winged;ribbed +
1;15 +
stigmatic +
absent +
zygomorphic +
cream-white +
monomorphic +
dimorphic +
enclosed +
staminate +
staminate +
straight +
hairy +
distinct +
proximal +
1;5 +
bisexual +
dispersed +
singly +
singly +
indeterminate +
Present +
surrounding +
hemispheric +
7mm;13mm +
oblongelliptic +
2.5mm;8mm +
lobed;linear;linear-oblong;linear;linear-oblong;lanceolate +
1mm;10mm +
opposite +
cauline +
deltate +
connate +
ovate +
2-carpellate +
inferior +
attached +
anatropous +
persistent +
falling +
absent +
tough +
thick +
tuberculate +
absent +
connate +
persistent +
distinct +
falling +
unequal +
Fl. N. Amer. +
1842 +
pistillate +
fertile +
paleate +
convex;conic +
fibrous +
exalbuminous +
modifed +
Illustrated +
alternate +
absent +
2-branched +
papillate +
Melampodium leucanthum +
Melampodium +
species +
campanulate +
shorter +
perennial +
subshrub +