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 sulphureus

Brewer's sweet or snub or sulfur pea, Brewer's sweet pea, snub pea, sulfur pea, sulpher pea, sulphur pea
Habit Herbs perennial, from rhizome, usually glabrous, rarely pubescent.
Stems

angled, climbing, basally branched 0–3 times, 5–15 dm.
Leaves

9–12 cm;

tendrils well developed;

stipules lanceolate, 15–25 × 4–10 mm, sometimes equal to distal leaflets;

leaflets 6–12, scattered, blades ovate to lanceolate, 25–50 × 10–20 mm, surfaces glabrous or pubescent.
Inflorescences

9–15-flowered, 6–10 cm.
Flowers

11–13 mm;

calyx lobes unequal, lateral lobes deltate to lanceolate, shorter than tube;

corolla orange to yellow-cream, banner erect, blade shorter than claw, wings equal to keel;

ovary glabrous.
Legumes

40–70 × 4–6 mm.

Lathyrus sulphureus
Distribution
from USDA
w United States
[WildflowerSearch map]
[BONAP county map]
Discussion

Varieties 2 (2 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Key
1. Herbs glabrous.
var. sulphureus
1. Herbs densely villous.
var. argillaceus
Source FNA vol. 11.
Parent taxa 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. sylvestris, L. tingitanus, L. torreyi, L. tracyi, L. tuberosus, L. venosus, L. vestitus
Subordinate taxa
L. sulphureus var. argillaceus, L. sulphureus var. sulphureus
Name authority W. H. Brewer ex A. Gray: Proc. Amer. Acad. Arts 7: 399. (1868)
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 Fabaceae, Apiaceae, Boraginaceae, and Polemoniaceae.)

Choose a data source: Flora of North America, OregonFlora

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