Asteraceae

Showing 37–48 of 56 results

  • Madia glomerata / mountain tarweed

    • stems, leaves, flowers - strongly aromatic, like tar
    • sticky glandular hairs cover foliage and floral bracts
    • flowers in clusters with 1 to 3 yellow ray florets
    • disk florets retain visible petals; black stamens

  • Packera cana / woolly groundsel

    • yellow, daisy-like blossoms with 8-13 ray florets ("petals")
    • golden, central disks
    • blossoms in flat-topped clusters of up to 15
    • mostly basal leaves - unlobed, hairy, ovate, up to 2 inches long
    • overall silvery appearance

  • Packera multilobata / lobeleaf groundsel

    • deeply lobed leaves, mostly at the base of the plant
    • bright yellow daisy-like flowers, 10-30 in a cluster per plant
    • orange-yellow disk florets
    • woodlands, foothills, and generally dry/ sandy/ rocky places.

  • Packera pseudaurea / falsegold groundsel

    • yellow, flat-topped cluster of daisy-like flowers
    • oval, erect basal leaves with long petioles and round/blunt-toothed edges
    • generally in moist to wet habitats

  • Packera streptanthifolia / Rocky Mountain groundsel

    • yellow-flowered composite; "flowers" on branched inflorescence
    • 8-13 half-inch ray florets, usually spaced apart
    • thick, spatula-shaped basal leaves without teeth or clefts
    • thin, often deeply lobed stem leaves
    • dry woodlands and rocky places

  • Rudbeckia occidentals / western coneflower

    • dark cone-shaped flower head - like a sunflower without petals
    • ring of yellow "bumps" visible during pollination time
    • "cones" about 1" but double that when in seed.
    • usually a tall plant with sunflower-like leaves
    • alternate (not opposite) leaves

  • Senecio integerrimus / tall western groundsel

    • early spring to early summer, often with larkspur
    • bright yellow flower head with several, disheveled looking blossoms
    • only 5-13 ray florets (petals)
    • cobwebby hairy basal leaves, especially when young
    • seasonally moist areas, from sagebrush to higher parts of the fen

  • Senecio triangularis / arrowleaf ragwort

    • leafy stems with arrow-shaped, coarse-toothed leaves
    • often in large patches on moist soil
    • clusters of yellow flower heads, each with 8-ish untidy ray florets
    • numerous green involucral bracts, sometimes with black tips
    • largest leaves occur mid-stem

  • Solidago canadensis / goldenrod

    • large sprays of yellow flowers in late summer and fall
    • often tall and in large colonies
    • lance-shaped, toothed leaves
    • mostly (but not always) in disturbed areas

  • Solidago missouriensis / Missouri goldenrod

    • perennial herb, up to 40" tall
    • inflorescence is a branching panicle with many (≥200) yellow flower heads
    • involucres are ¼ long with 3 or 4 layers of narrow, pointed, hairless, yellow-green bracts
    • leaves are thin and lanceolate, upright and rigid with prominent midribs
    • upper leaves have pronounced but small teeth

  • Solidago multiradiata / alpine goldenrod

    • the only (?) goldenrod at alpine altitudes
    • clusters of 5-100 small, yellow composite flowers with a dozen-ish rays and 3 doz disc florets
    • medium green lance/spoon shaped leaves, bigger at base of the plants; toothed/hairy edges

  • Sonchus arvensis / field sowthistle

    • yellow dandelion-like
    • multiple flowers per stalk
    • often in patches in wet fields
    • leaves spiney but without lobes, clasping the stems
    • often several stems from a single point at the soil level

Showing 37–48 of 56 results