The Genus Oxytropis East of the Cascade Mts.
1. Field Crazyweed: Oxytropis campestris var. columbiana - Stems short or absent, with only leafless flower stems above the cluster of basal leaves. Plants not sticky or glandular. Flowers white and 10-20 mm long, the keel purple-spotted. Leaflets generally number less than 17.
2. Cusick's Loco Weed, Field Crazyweed: Oxytropis campestris var. cusickii - Stems short or absent, with only leafless flower stems above the cluster of basal leaves. Plants not sticky or glandular. Flowers whitish-yellow, 10-20 mm long, the keel not purple spotted. Flower stems usually less than 15 cm long. Leaflets usually less than 17.
3. Field Crazyweed: Oxytropis campestris var. spicata -
4. Field Crazyweed: Oxytropis campestris var. wanapum -
5. Blue Pendant-pod Oxytrope: Oxytropis deflexa var. sericea - Pods pendulous. Stems 3-20 cm long, often leafy. Flowers white to bluish-purple, 6-10 mm long.
6. Field Crazyweed: Oxytropis monticola (formerly Oxytropis campestris var. gracilis) - Stems short or absent, with only leafless flower stems above the cluster of basal leaves. Plants not sticky or glandular. Flowers whitish-yellow, 10-20 mm long, the keel not purple spotted. Flower stems typically more than 15 cm long. leaves usually with more than 17 leaflets.
7. Silky Crazyweed: Oxytropis sericea var. sericea - Stems short or absent, with only leafless flower stems above the cluster of basal leaves. Plants not sticky or glandular. Flowers lemon to sulfur yellow, 15-27 mm long.
8. Sticky Loco Weed, Sticky Crazyweed: Oxytropis viscida var. viscida - Stems short or absent, with only leafless flower stems above the cluster of basal leaves. Stems glandular and sticky. Pods spreading toa scending. Flowers cream to purple, 10-15 mm long.