Flora of North America species comparison

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Schoenolirion wrightii

Texas sunnybell
Habit Plants with prominent bulbs at tops of vertical rootstocks; bulbs ovoid to elongate, to 17 mm diam.
Leaves

2–7, 14–34 cm × 2–6 mm, not withering to persistent fibers;

blade flattened or somewhat keeled, usually shorter than scape and inflorescence, base fleshy.
Inflorescences

seldom branched;

bracts mostly lanceolate-acuminate, sometimes ovate-obtuse.
Flowers

tepals seldom strongly recurved, white, each with green abaxial stripe, mostly 3(–5)-veined, ovate to ovate-lanceolate, 4.4–6.5 mm, apex obtuse;

ovary and style green.
2n

= 24.

Schoenolirion wrightii
Phenology Flowering late Mar–mid Apr in Texas, Arkansas; mid Apr–early May in Alabama; dormant by mid Jun.
Habitat Sandstone outcrops, moist pinelands, or boggy areas
Elevation 0–400 m (0–1300 ft)
Distribution
from FNA
AL; AR; LA; TX
[WildflowerSearch map]
[BONAP county map]
Discussion

Schoenolirion wrightii occurs in habitats similar to those of S. croceum in the Alabama plateau region and in the western part of its range.

Treatment of these white-flowered plants as a species distinct from Schoenolirion croceum is very tenuous; tepal color seems to be the only consistent difference between the two. At the time of the last systematic study of the genus (H. L. Sherman 1969), there seemed to be a significant difference in chromosome number between the two “color forms” (2n = 24 for S. wrightii and 2n = 30 or 32 for S. croceum). Since that time, one population of S. croceum with 2n = 24 has been found. In future treatments of the genus, S. wrightii may be considered to be a color form or variety of S. croceum.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 26, p. 313.
Parent taxa Liliaceae > Schoenolirion
Sibling taxa
S. albiflorum, S. croceum
Name authority Sherman: SouthW. Naturalist 24: 125. (1979)
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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