Allenrolfea |
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allenrolfea, iodine bush |
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Habit | Shrubs, glabrous. |
Stems | erect or decumbent, much-branched, not armed, succulent; branches articulated into small joints. |
Leaves | alternate, ascending, sessile, reduced to scales; blade broadly triangular, base clasping, margins entire, apex acute. |
Inflorescences | terminal spikes, flowers spirally arranged in 3s or 5s in axils of deciduous, peltate, fleshy bracts. |
Flowers | bisexual, sessile; perianth 4–5-lobed, angled, truncate distally, unchanged in fruit; stamens 1–2, exserted; stigmas 2(–3), usually distinct. |
Fruits | utricles, ovoid, compressed; pericarp free, membranous. |
Seeds | erect, brown or reddish brown, oblong, smooth; embryo partly enclosing copious perisperm, radicle inferior. |
x | = 9. |
Allenrolfea |
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Distribution |
North America; Mexico; Central America; South America |
Discussion | Species 3 (1 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 4, p. 321. |
Parent taxa | |
Subordinate taxa | |
Name authority | Kuntze: Revis. Gen. Pl. 2: 545. (1891) |
Web links |