Flora of North America species comparison

The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

Lathyrus lanszwertii var. leucanthus

Lathyrus lanszwertii var. aridus
Photo is of parent taxon

Nevada pea
Photo is of parent taxon

dryland Nevada pea, Nevada pea, pinewoods peavine
Stems

erect, 1–3 dm.

erect, 1–3 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.

2–4 cm, terminating in simple bristle, usually less than 1 cm;

leaflets 4–8, blades linear, 20–40 × 2–5 mm.
Inflorescences

3–5 cm.

2–4 cm.
Flowers

10–15 mm, corolla white.

7–10 mm, corolla white.
2n

= 28.

= 14.

Lathyrus lanszwertii var. leucanthus

Lathyrus lanszwertii var. aridus
Phenology Flowering Apr–Jun. Flowering Apr–Jun.
Habitat In sagebrush, openings in pine, oak, and aspen woodlands. Open ponderosa pine wood­lands, adjacent sagebrush steppes.
Elevation 2000–3200 m. (6600–10500 ft.) 800–2000 m. (2600–6600 ft.)
Distribution
from FNA
AZ; CO; NM; UT; WY
[BONAP county map]
from FNA
CA; NV; OR; WA
[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 aridus is known from the eastern flanks of the Sierra Nevada in California and western Nevada and in the Cascade Range north to south-central Washington. It appears to intergrade with var. lanszwertii in central Washington and Oregon.

(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. bijugatus, L. lanszwertii var. lanszwertii, L. lanszwertii var. leucanthus, L. lanszwertii var. pallescens
Synonyms L. leucanthus, L. arizonicus, L. lanszwertii var. arizonicus L. coriaceus subsp. aridus, L. lanszwertii subsp. aridus
Name authority (Rydberg) Dorn: Vasc. Pl. Wyoming, 171, 297. (1988) (Piper) Jepson: Fl. Calif. 2: 389. (1936)
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).



Type/paste one or more Latin names into the boxes above; matching taxa will show up below the box as you type. You can use the up/down arrow keys to move through the list.

(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Apiaceae, Boraginaceae, and Polemoniaceae.)

Choose a data source: Flora of North America, OregonFlora, UW Burke Herbarium

The species comparison tool is brought to you by:
Northwest Wildflowers