Flora of North America species comparison

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Allium perdulce var. perdulce

Allium perdulce var. sperryi
Photo is of parent taxon

plains onion
Photo is of parent taxon

sperry's onion
Bulbs

1–2 × 1.2–1.5 cm.

1.5–2.5 × 1.6–2.8 cm.
Leaf

blade 1–2 mm wide.

blade 1–3 mm wide.
Pedicel

3–15 mm.

10–17 mm.
Tepals

deep rose-colored, aging to purple.

white or pale pink with deep pink midveins, aging to pink.
2n

= 14.

= 28.

Allium perdulce var. perdulce

Allium perdulce var. sperryi
Phenology Flowering Apr–Jun. Flowering Mar–Apr.
Habitat Usually sandy soils, plains Rocky margins entire, apex obtuse or acute, slopes and plains
Elevation 300–1300 m (1000–4300 ft) 700–1500 m (2300–4900 ft)
Distribution
from FNA
IA; KS; NE; NM; OK; SD; TX
[BONAP county map]
from FNA
TX
[BONAP county map]
Discussion

Allium perdulce var. sperryi is a well-marked, polyploiid, geographic variant. Although both varieties of the species reach the same extremes of size, var. sperryi is, on average, considerably taller and stouter than var. perdulce. It also tends to have a larger number of flowers and longer pedicels. Distributions of the two varieties do not overlap.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 26, p. 241. FNA vol. 26, p. 241.
Parent taxa Liliaceae > Allium > Allium perdulce Liliaceae > Allium > Allium perdulce
Sibling taxa
A. perdulce var. sperryi
A. perdulce var. perdulce
Name authority unknown Ownbey: Res. Stud. State Coll. Wash. 18: 202. (1951)
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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