California False Hellebore (Veratrum californicum) is also known as Corn Lily, California Corn Lily, White False Hellebore, Cow Candy, and Cow Cabbage. It is native to the Western states in North America and grows in moist, open meadows and hillsides. It is poisonous to insects and pregnant livestock, mainly sheep. It's leaves are alternate, heavily veined, and bright green. It grows from a bulb with rhizomes, and spreads by mast seeding.

Life Cycle: Perennial

Height: 3' to 6'

Solar Exposure: Part-Shade to Full Sun

Bloom Color: Creamy-white

Bloom Time: Spring

USDA PLANTS Database Link

Western Larch (Larix occidentalis) is also sometimes known as Tamarack, Mountain Larch, or Hackmatack. It is one of the few deciduous conifers, its needles turning yellow and falling to the ground in the Fall. The other deciduous conifers are the Dawn Redwood and the Bald Cypress. Western Larch has a low drought tolerance and requires full sun. It grows in the North Western United States and Canada. The crown is short and open, and the bark resembles P. ponderosa. It has the densest wood of all the North West Conifers, and is the tallest of the larix species.

Height: Up to 200'

Needles: 1-2" long, 15-30 needles per spur

Cones: <2", long, thin, red-brown scales, borne upright, and stay for years

USDA PLANTS Database Link

Pics from USDA Plant Database:

Montana Goldenpea (Thermopsis montana) is also known as Mountain Goldenbanner, Montana Bushpea, Yellow Pea, Buffalo Pea, Buckbean, or False Lupine. It is native to Western North America, and grows in wet and dry conditions, as well as in sandy or rocky soil. It spreads via rhizomes and by seed. The slender stems are purplish with a white coating, slightly branched above, and bear three-parted leaves. Yellow, lupine-like flowers occur in dense to interrupted clusters 4-12 in. long. Flowers are followed by velvety pods that turn black in the Fall when the seed is ripe. Fun fact, the flowers are especially attractive to bumblebees.

Life Cycle: Perennial

Solar Exposure: Full sun

Bloom Color: Yellow

Bloom Time: May through August

USDA PLANTS Database Link