Melampodium perfoliatum
in A. von Humboldt et al., Nov. Gen. Sp. 4(fol.): 215. 1818.
4(qto.): 474. 1820.
Introduced
Basionym: Alcina perfoliata Cavanilles Icon. 1: 11, plate 15. 1791
Treatment appears in FNA Volume 21. Treatment on page 35.
Annuals, 20–150+ cm. Leaf-blades ± deltate to rhombic-deltate, 40–200+ × 25–150+ mm, lengths 1–2 (–3+) times widths, margins ± toothed or entire. Peduncles 1–10+ cm. Outer phyllaries 5, connate 0–1/6 their lengths, oblong to elliptic, (6–) 12–15+ mm. Ray-florets 8–13; corollas yellow-orange, laminae oblongelliptic, 2.5–5+ × 1.6–3+ mm. Disc-florets 30–45+. Fruits 4–7+ mm. 2n = 22, 24.
Phenology: Flowering year round.
Habitat: Disturbed, usually moist sites
Elevation: 10–50+ m
Distribution
Introduced; Calif., Mexico, West Indies (Antilles), Central America
Discussion
Melampodium perfoliatum may be no longer present in California.
Selected References
None.
Lower Taxa
None.
... more about "Melampodium perfoliatum"
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 +
yellow-orange +
monomorphic +
dimorphic +
enclosed +
staminate +
staminate +
straight +
hairy +
distinct +
proximal +
1;5 +
bisexual +
dispersed +
singly +
singly +
indeterminate +
true +
surrounding +
hemispheric +
2.5mm;5mm +
oblongelliptic +
1.6mm;3mm +
1-2(-3+) +
less deltate;rhombic-deltate +
25mm;150mm +
opposite +
cauline +
deltate +
connate +
2-carpellate +
inferior +
attached +
anatropous +
persistent +
falling +
absent +
tough +
thick +
tuberculate +
absent +
connate +
persistent +
distinct +
falling +
unequal +
in A. von Humboldt et al., Nov. Gen. Sp. +
pistillate +
fertile +
paleate +
convex;conic +
fibrous +
exalbuminous +
modifed +
Introduced +
alternate +
absent +
2-branched +
papillate +
Melampodium perfoliatum +
Melampodium +
species +
campanulate +
shorter +
annual +
subshrub +