Flora of North America species comparison

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Zephyranthes grandiflora

rosepink zephyrlily
Leaf

blade shiny green, to 7 mm wide.
Flowers

usually inclined;

perianth pink, funnelform, 5.6–9 cm;

perianth tube green, (1.2–)1.8–2.3 cm, increasing in diam., ca. 1/4 (1/5–1/3) perianth length, usually less than or equaling filament length, ca.1/3–1/2 spathe length;

tepals reflexed;

stamens diverging, appearing equal;

filaments filiform, 2–3 cm;

anthers 13–22 mm;

style longer than perianth tube;

stigma 3-fid, exserted more than 2 mm beyond anthers;

pedicel 1.3–3.8 cm, usually shorter than spathe.
Spathe

3–4 cm.
2n

= 48.

Zephyranthes grandiflora
Phenology Flowering spring–early summer (Apr–Jul).
Habitat Open areas in or near moist woods
Elevation 0–100 m (0–300 ft)
Distribution
from FNA
AL; FL; LA; MS; TX; e Mexico; Central America; West Indies [Introduced in North America]
[WildflowerSearch map]
[BONAP county map]
Discussion

Zephyranthes grandiflora frequently displays flowers with extra parts and has been widely distributed as an ornamental. Flowers with extra parts have been seen in Z. atamasca, Z. candida, Z. rosea, and Z. treatiae. Zephyranthes grandiflora also has been found to have a variable number of chromosomes in cells from single plants (R. O. Flagg 1961).

As a rule, the flowers of Zephyranthes species having high chromosome numbers, 2n = 48 or more, are built for self-fertilization, with the stigma borne very near (within 2 mm), among, or beneath the anthers (R. O. Flagg and W. S. Flory 1962). However, Zephyranthes grandiflora is an exception and often exhibits poor fertility.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 26, p. 299.
Parent taxa Liliaceae > Zephyranthes
Sibling taxa
Z. atamasca, Z. candida, Z. chlorosolen, Z. citrina, Z. drummondii, Z. insularum, Z. jonesii, Z. longifolia, Z. pulchella, Z. refugiensis, Z. rosea, Z. simpsonii, Z. smallii, Z. traubii, Z. treatiae
Name authority Lindley: Bot. Reg. 11: plate 902. (1825)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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