OregonFlora species comparison

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Lathyrus japonicus

Lathyrus polyphyllus

beach pea, maritime pea

leafy pea
Habit Plants perennial.
Stems

erect, climbing, 4–8 dm, ribbed or angled, basally branched 0–2 times.
Leaves

11–16 cm;

leaflets 10–16, unpaired; ovate to lanceolate, 30–50 × 10–30 mm;

surfaces glabrous;

tendrils well developed;

stipules ovate to lanceolate, approaching leaflets in size, bases semi-sagittate.
Inflorescences

8–12-flowered, 9–14 cm.
Flowers

15–18 mm;

corollas blue-purple;

wings ? keels.

Lathyrus japonicus

Lathyrus polyphyllus
Distribution
[WildflowerSearch map]
[BONAP county map]
[WildflowerSearch map]
[BONAP county map]
Discussion

Openings in coniferous forests. Flowering Apr–Jul. 0–1600 m. Casc, CR, Est, Sisk, WV. CA, WA. Native.
Source Flora of Oregon, volume 2, page 693
Steven Broich
Sibling taxa
L. angulatus, L. aphaca, L. brownii, L. delnorticus, L. hirsutus, L. holochlorus, L. lanszwertii, L. latifolius, L. littoralis, L. nevadensis, L. nissolia, L. odoratus, L. palustris, L. pauciflorus, L. polyphyllus, L. rigidus, L. sativus, L. sphaericus, L. sulphureus, L. sylvestris, L. tingitanus, L. torreyi, L. tracyi, L. vernus, L. vestitus
L. angulatus, L. aphaca, L. brownii, L. delnorticus, L. hirsutus, L. holochlorus, L. japonicus, L. lanszwertii, L. latifolius, L. littoralis, L. nevadensis, L. nissolia, L. odoratus, L. palustris, L. pauciflorus, L. rigidus, L. sativus, L. sphaericus, L. sulphureus, L. sylvestris, L. tingitanus, L. torreyi, L. tracyi, L. vernus, L. vestitus
Subordinate taxa
L. japonicus var. glaber
Web links 
Unless otherwise noted, all data comes from OregonFlora.



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