Plants in the Valley

Showing 157–168 of 343 results

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 albiflorum / white hawkweed
- white, dandelion-like flower; up to 50 per plant
- 6-25 florets
- square-end petals each with 4 small notches
- hairy stems and basal leaves
- shady openings in dry forests
Hieracium aurantiaca / orange hawkweed
- orange dandelion-like flower
- petals square ended with small notches
- hairy leaves, stems and involucres
- found in many habitats, sometimes in excess
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
Hippuris vulgaris / common mare’s tail
- two possible forms - emergent and submerged
- submerged looks like a tail... thick with whorls of long-ish leaves
- emergent looks like Equisetum gone wild... whorls of many leaves
- both forms may be present
- mostly in river backwaters or small streams running through the fen
Hordeum jubatum / foxtail barley
- attractive roadside grass
- long, silky, glistening awns; red, green, purple-ish
- awns and bracts are sharp and barbed... potentially dangerous to dogs
Huechera cylindrica / coral bells
- oval-shaped leaves growing in clumps/tufts - all basal
- leaf edges with small lobes or teeth
- teeny pale yellow, creamy, green or pink flowers on a leafless stem
- flowers more dense at top of spike than lower down
- in woods, on cliff-side ledges, rocky slopes and subalpine meadows
Hydrophyllum capitatum / ballhead waterleaf
- leaves to 10" tall, deeply lobed (7-11 lobes)
- globe of purple-blue-white flowers below the leaves or at ground level
- flowers are fuzzy while still in bud
- rocky, shady, seasonally moist sites
Hyocyamus niger / black henbane
- highly toxic! including contact dermatitis
- 5-lobed, funnel-shaped flowers, brownish yellow with purple veins and center; 1.5" across
- flowers in summer, e.g. warm June, July
- elliptical leaves, pointy tips, toothed or lobed margins, prominent veins
- highly disturbed areas: wastelands, field edges etc.
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
Iliamna rivularis / streambank globemallow
- showy, pink flowers, sometimes rose or nearly white
- tall, up to 6 feet
- large, broadly "heart-shaped" leaves with big, triangular lobes
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