Flora of North America species comparison

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Lathyrus littoralis

beach pea, beach peavine, dune sweet pea, gray beach or silky beach pea, gray beach pea, grey beach peavine, silky beach pea, silky beach vetchling
Habit Herbs perennial, from rhizome, cinereous and densely villous throughout.
Stems

angled, sprawling, basally branched 0–4 times, 1–4 dm.
Leaves

1–3 cm;

tendrils flattened bristles;

stipules ovate to lanceolate, 10–27 × 5–12 mm, often larger than leaflets;

leaflets 4 or 6, paired, blades obovate to oblanceolate, 10–20 × 4–8 mm, surfaces densely villous.
Inflorescences

4–8-flowered, 3–10 cm.
Flowers

13–15 mm;

calyx lobes equal, lateral lobes deltate, equal to or shorter than tube;

corolla dark purple, banner erect, blade longer than claw, wings longer than keel;

ovary densely pubescent.
Legumes

20–30 × 9–13 mm.
2n

= 28.

Lathyrus littoralis
Phenology Flowering Apr–Jun.
Habitat Coastal sand dunes, deflation plain interdune areas.
Elevation 0–15 m. (0–0 ft.)
Distribution
from FNA
CA; OR; WA; BC
[WildflowerSearch map]
[BONAP county map]
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. 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
Synonyms Astrophia littoralis
Name authority (Nuttall) Endlicher in W. G. Walpers: Repert. Bot. Syst. 1: 722. (1842)
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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(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.)

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