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Showing 61–72 of 135 results

Hedysarum occidentale / western sweetvetch
- tall legume with hot pink flowers
- inflorescence several inches long; up to 80 flowers
- pinnately compound leaves with 9-21, inch-long leaflets
- higher elevations on drier, more rocky soils
Helenium autumnale / common sneezeweed
- 2" flower head with nearly spherical central disk; numerous yellow rays
- found in moist areas in full or partial sun
- sessile or clasping lance shaped leaves on an angled and winged stem
Helianthus annuus / sunflower
- tall with big, drooping leaves (up to 15x15 inches)
- large sunflower like flowers - yellow petals, darker disk
- disturbed edges and waste areas, roadsides, near crops
Heliomeris multiflora / showy goldeneye
- a "Doggone" Yellow Composite (DYC) with 5-14 ray florets; golden dome of disc florets
- multi-stemmed perennial forms clumps
- often seen in profusion (but not always)
- long, thin, lanceolate to linear leaves; maybe with a few small teeth along the edges
- leaves have a strong midrib vein and distinct side veins
Hesperostipa comata / needle and thread
- widely spaced bunchgrass
- glossy leaves, smooth stem
- narrow inflorescence with long awns (hairs)
- sharp, needle-like seed retaining the awn
- drought tolerant
Heterotheca villosa / hairy goldenaster
- yellow composite with 10-20 ray florets, orange-brown disk
- hairy leaves and stems
- blooms throughout season, often densely
- disturbed and challenging habitats
Heuchera parvifolia / littleleaf alumroot
- subalpine, alpine... on rocks
- clusters of round or kidney-shaped leaves
- leaves lobed, all basal (no stem leaves)
- inflorescences tower over leaves
- clumps of teeny, yellow flowers along a spike-like flowering stalk
Hieracium scouleri / western hawkweed
- dandelion-like yellow flower heads
- square-ended petals; long stamens with split ends
- central yellow "button"
- hairy all over, especially on leaves and lower stem
- blooms all summer
Hypericum perforatum / St. John’s wort
- bright yellow, 5-petaled flowers
- many stamens sticking out every which way
- sizable black and/or white glands on leaves and petals
- waist high and grows in large colonies (invasive)
- not (yet) seen west of the Tetons
Ipomopsis aggregata / scarlet gilia
- bright red (usually), elongated, trumpet-like flowers; 5 petals
- late season (July, August) flowers may be white
- highly divided, comb-like leaves
- pollination by hummingbirds (red forms) and moths (white, late forms)
- smells bad but tastes good
Juniperus scopulorum / Rocky Mountain juniper
- small, rounded evergreen tree (or shrub)
- fibrous, red to grey, shredded bark
- pollen and seed cones at branch tips on separate plants
- female cones blue berries with a waxy, whitish bloom
- leaves on mature plants scale-like
- leaves on young plants are prickly, needle-like
Koeleria macrantha / Prairie Junegrass
- short, tuft-forming bunchgrass
- leaves short and basal with raised veins
- grows in early spring; flowers in June/July
- spike-like cylindrical inflorescence, 2-5" long, tan or purple
- scattered distributions, esp. in rocky or sandy forests or plains