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copperlily, rain-lily

Habit Herbs, perennial, scapose, from bulbs.
Bulbs

black or brown, tunicate, ovoid or globose, sometimes with long neck.

Leaves

deciduous, sessile, erect or recumbent, bases overlapping, sheathing;

blade linear, rarely exceeding 2 cm wide, smooth.

Scape

hollow.

Inflorescences

umbellate, 1[–4]-flowered, spathaceous;

spathe proximally tubular;

bracteoles sometimes present.

Flowers

declinate [to suberect], somewhat zygomorphic;

perianth connate proximally, funnelform, shortly tubular basally, 2–8 cm;

tepals subequal;

filaments inserted on tepals distal to perianth tube, fasciculate [semifasciculate], declinate and recurving distally, filiform, in sets of 4 different lengths;

anthers submedially dorsifixed, usually parallel with floral axis, linear-oblong;

ovary inferior;

style filiform;

stigma 3-fid, lobes linear;

pedicel rarely absent, hollow.

Fruits

capsular, 3-locular, thin-walled, subglobose or ± oblate.

Seeds

numerous, dark brown to black, flat, D-shaped, obliquely winged, lustrous.

x

= 6.

Habranthus

Distribution
from USDA
Mexico; South America; se to sc United States
[BONAP county map]
Discussion

Species ca. 30 (2 in the flora).

Habranthus species have at times been included in the genus Zephyranthes. The somewhat zygomorphic flower of Habranthus is clearly distinguished by filaments of 4 different lengths, which are fasciculate to semifasciculate, and always longer than the perianth tube. The actinomorphic flower of Zephyranthes is distinguished by filaments of two lengths (sometimes subequal), which are not fasciculate and are spreading except when shorter than the perianth tube.

All measurements were taken from pressed, dried specimens. Generally, the maximum width of a fresh leaf would be about one and one half times that reported here.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Key
1. Perianth bright yellow or orangish yellow, less than 4 cm; stigma borne near top of stamens; leaf blade not exceeding 4 mm wide.
H. tubispathus
1. Perianth pink, 6+ cm; stigma borne ca. 1 cm beyond stamens; leaf blade more than 5 mm wide.
H. robustus
Source FNA vol. 26, p. 281. Authors: Raymond O. Flagg, Gerald L. Smith, Walter S. Flory†.
Parent taxa Liliaceae
Subordinate taxa
H. robustus, H. tubispathus
Name authority Herbert: Bot. Mag. 51: plate 2464. (1824)
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