Flora of North America species comparison

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Lathyrus lanszwertii var. leucanthus

Lathyrus lanszwertii var. bijugatus
Photo is of parent taxon

Nevada pea
Photo is of parent taxon

drypark pea, pinewood peavine, Sandberg's vetchling
Stems

erect, 1–3 dm.

erect, sprawling, or climbing, 2–4 dm.
Leaves

2–3 cm, terminating in simple bristle, less than 1 cm;

leaflets 4–6, blades lanceolate and 25–50 × 5–15 mm, or linear and 35–70 × 2–5 mm.

0.5–2 cm, terminating in simple bristle less than 1 cm;

leaflets 2–4, blades lanceolate or linear, 20–50 × 4–15 mm or 30–90 × 2–5 mm.
Inflorescences

3–5 cm.

2–3 cm.
Flowers

10–15 mm, corolla white.

8–10 mm, corolla pink or blue.
2n

= 28.

Lathyrus lanszwertii var. leucanthus

Lathyrus lanszwertii var. bijugatus
Phenology Flowering Apr–Jun. Flowering Apr–Jun.
Habitat In sagebrush, openings in pine, oak, and aspen woodlands. Edges and openings of coniferous woodlands.
Elevation 2000–3200 m. (6600–10500 ft.) 600–1600 m. (2000–5200 ft.)
Distribution
from FNA
AZ; CO; NM; UT; WY
[BONAP county map]
from FNA
ID; MT; WA; BC
[BONAP county map]
Discussion

Variety leucanthus includes two distinct sympatric races: one with lanceolate leaflets (= L. leucanthus), and one with linear leaflets (= L. arizonicus Britton).

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

Variety bijugatus, which is found from southern British Columbia to eastern Washington, northern Idaho, and western Montana, includes two distinct sympatric races: one with lanceolate leaflets (= L. bijugatus var. bijugatus in the sense of White), and one with linear leaflets (= L. bijugatus var. sandbergii).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 11. FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Lathyrus > Lathyrus lanszwertii Fabaceae > subfam. Faboideae > Lathyrus > Lathyrus lanszwertii
Sibling taxa
L. lanszwertii var. aridus, L. lanszwertii var. bijugatus, L. lanszwertii var. lanszwertii, L. lanszwertii var. pallescens
L. lanszwertii var. aridus, L. lanszwertii var. lanszwertii, L. lanszwertii var. leucanthus, L. lanszwertii var. pallescens
Synonyms L. leucanthus, L. arizonicus, L. lanszwertii var. arizonicus L. bijugatus, L. bijugatus var. sandbergii
Name authority (Rydberg) Dorn: Vasc. Pl. Wyoming, 171, 297. (1988) (T. G. White) Broich: Madroño 54: 371. (2008)
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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