Malachra

Linnaeus

Syst. Nat. ed. 12, 2: 458. 1767.

,

Mant. Pl. 1: 13. 1767.

Etymology: Ancient name, perhaps from Greek malache, mallow
Treatment appears in FNA Volume 6. Treatment on page 279. Mentioned on page 216.
Revision as of 00:41, 28 May 2020 by imported>Volume Importer

Herbs or subshrubs, annual or perennial. Stems erect, puberulent or hispid, not viscid. Leaves: stipules persistent, filiform; blade broadly ovate, lyrate, or palmately 3–5-lobed, base rounded or truncate, margins crenate or serrate, surfaces usually hairy. Inflorescences axillary [or terminal], headlike racemes, subtended by prominently veined, sessile or subsessile, boat-shaped bracts; involucel absent [present]. Flowers: calyx not accrescent, not inflated, deeply divided, lobes unribbed or somewhat ribbed, lanceolate-ovate, hispid; corolla yellow, [white or lavender]; staminal column included; styles 10-branched; stigmas capitate. Fruits schizocarps, erect, not inflated, oblate, not indurate, glabrous or puberulent; mericarps 5, 1-celled, without dorsal spur, smooth, indehiscent. Seeds 1 per mericarp, glabrous. x = 28.

Distribution

sc United States, Mexico, West Indies, Central America, South America, introduced in Asia (including Malesia), Africa.

Discussion

Species 8–10 (2 in the flora).

Selected References

None.

Key

1 Peduncles usually exceeding corresponding petioles; floral bracts deeply cordate; herbage stellate-hairy; fruits glabrous. Malachra capitata
1 Peduncles shorter than corresponding petioles; floral bracts ovate; herbage hispid; fruits minutely puberulent to pubescent. Malachra urens
... more about "Malachra"
Paul A. Fryxell† +  and Steven R. Hill +
Linnaeus +
sc United States +, Mexico +, West Indies +, Central America +, South America +, introduced in Asia (including Malesia) +  and Africa. +
Ancient name, perhaps from Greek malache, mallow +
Syst. Nat. ed. +  and Mant. Pl. +
Malachra +
Malvaceae subfam. Malvoideae +