Lathyrus venosus
Lathyrus venosus var. arkansanus
bushy vetchling, veiny pea, veiny peavine
angled, sprawling or climbing, basally branched 0–3 times, 4–10 dm.
6–18 cm;
tendrils well developed;
stipules lanceolate to linear, 10–20 × 2–10 mm, much smaller than distal leaflets (less than 1/4 width of distal leaflets);
leaflets 8–14, scattered, blades ovate to lanceolate, 25–70 × 10–35 mm, surfaces glabrous or pubescent.
5–20-flowered, 6–20 cm.
10–15 mm;
calyx lobes unequal, lateral lobes linear-triangular or lanceolate, shorter to longer than tube;
corolla blue-purple to rose, banner erect, blade equal to claw, wings equal to keel;
ovary glabrous or pubescent.
lateral lobes lanceolate, longer than tube.
20–50 × 3–7 mm.
= 28.
Lathyrus venosus
Lathyrus venosus var. arkansanus
Varieties 3 (3 in the flora).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Lateral calyx lobes in var. arkansanus are somewhat polymorphic. It is found in the extreme southwestern corner of the distribution of the species.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Herbs sparsely to densely pubescent. | var. intonsus |
1. Herbs glabrous. | → 2 |
2. Calyces: lateral lobes linear-triangular, equal to or shorter than tubes. | var. venosus |
2. Calyces: lateral lobes lanceolate, longer than tubes. | var. arkansanus |
WildflowerSearch
iNaturalist
USDA Plants Database
LA Plants
