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bushy vetchling, veiny pea, veiny peavine

redwood pea, sticky pea

Habit Herbs perennial, from rhizome, glabrous or pubescent. Herbs perennial, from rhizome, sparsely puberulent.
Stems

angled, sprawling or climbing, basally branched 0–3 times, 4–10 dm.

narrowly winged, erect, sprawling, or climbing, basally branched 0–2 times, 2–6 dm.

Leaves

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.

14–18 cm;

tendrils well developed;

stipules lanceolate, 10–20 × 1–5 mm, much smaller than leaflets;

leaflets 14–18, scattered, blades ovate to lanceolate, 30–50 × 10–20 mm, surfaces pubescent with eglandular trichomes, glandular-pubescent abaxially.

Inflorescences

5–20-flowered, 6–20 cm.

7–12-flowered, 10–16 cm.

Flowers

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.

10–14 mm;

calyx lobes unequal, lateral lobes linear-triangular, longer than tube;

corolla blue-purple, banner erect, blade longer than claw, wings equal to keel;

ovary densely glandular-pubescent.

Legumes

20–50 × 3–7 mm.

30–50 × 6–8 mm.

2n

= 14.

Lathyrus venosus

Lathyrus glandulosus

Phenology Flowering May–Jun.
Habitat Roadsides, talus slopes, oak woodlands.
Elevation 0–800 m. (0–2600 ft.)
Distribution
from USDA
North America
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[BONAP county map]
Discussion

Varieties 3 (3 in the flora).

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

Lathyrus glandulosus is known only from Humboldt and northern Mendocino counties.

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

Key
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
Source FNA vol. 11. FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Lathyrus Fabaceae > subfam. Faboideae > Lathyrus
Sibling taxa
L. angulatus, L. aphaca, L. biflorus, L. brachycalyx, L. brownii, L. cicera, L. decaphyllus, L. delnorticus, L. eucosmus, L. glandulosus, L. graminifolius, L. grimesii, L. hirsutus, L. hitchcockianus, L. holochlorus, L. japonicus, L. jepsonii, L. laetivirens, L. lanszwertii, L. latifolius, L. littoralis, L. nevadensis, L. nissolia, L. ochroleucus, L. odoratus, L. palustris, L. pauciflorus, L. polyphyllus, L. pratensis, L. pusillus, L. rigidus, L. sphaericus, L. splendens, L. sulphureus, L. sylvestris, L. tingitanus, L. torreyi, L. tracyi, L. tuberosus, L. vestitus
L. angulatus, L. aphaca, L. biflorus, L. brachycalyx, L. brownii, L. cicera, L. decaphyllus, L. delnorticus, L. eucosmus, L. graminifolius, L. grimesii, L. hirsutus, L. hitchcockianus, L. holochlorus, L. japonicus, L. jepsonii, L. laetivirens, L. lanszwertii, L. latifolius, L. littoralis, L. nevadensis, L. nissolia, L. ochroleucus, L. odoratus, L. palustris, L. pauciflorus, L. polyphyllus, L. pratensis, L. pusillus, L. rigidus, L. sphaericus, L. splendens, L. sulphureus, L. sylvestris, L. tingitanus, L. torreyi, L. tracyi, L. tuberosus, L. venosus, L. vestitus
Subordinate taxa
L. venosus var. arkansanus, L. venosus var. intonsus, L. venosus var. venosus
Name authority Muhlenberg ex Willdenow: Sp. Pl. 3: 1092. (1802) Broich: Madroño 33: 136, figs. 1, 2. (1986)
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