late summer

Showing 109–120 of 128 results

  • Silene latifolia / white campion

    • white, 5-petaled flowers with distinctive inflated calyx (bladder)
    • flowers in clusters atop stems
    • whole plant densely hairy
    • widespread on alkaline soils (e.g. the Valley)

  • Sisymbrium altissimum / tumble mustard

    • inflorescence a raceme with yellow, teeny flowers
    • long, thin seed pods (siliques)
    • blooms throughout the spring and summer
    • shoots look like a bunch of sticks glued together
    • dries and breaks off, then tumbles

  • Solanum physalifolium / ground cherry nightshade

    • flowers look like potato or tomato flowers
    • small white, 5 recurved petals
    • clump of yellow stamens protrude from flower
    • triangular leaves with wedge-shaped bases
    • usually sprawling on ground

  • 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

  • Symphiocarpos oreophilus / mountain snowberry

    • small pink (or white) bell or funnel shaped flowers, singly or in pairs
    • shrub - upright or spreading
    • most visible in late summer when the white "berries" ripen
    • in the open or in canopy gaps; along the sides Forest Service roads

  • Tanacetum vulgare / tansy

    • yellow, somewhat flattened, button-like flowers
    • pretty clearly in the aster family
    • camphor-ish smell
    • finely divided, fern-like compound leaves

  • Taraxia tanacetifolia / tansyleaf evening primrose

    • single, sessile, bright yellow, cup shaped flowers; 4 petals
    • grows as a rosette, flat to the ground
    • leaves are up to 12 inches long; very deeply lobed
    • still blooming in mid-October; starts in mid summer
    • grows on sandy/gravelly soil, e.g. drying lake beds

  • Telesonix heucheriformis / false saxifrage

    • alpine or subalpine
    • on scree, rock faces, cliffs, in cracks
    • glandular, slightly lobed leaves (common for the family)
    • teeny red or purple-ish flowers in large-ish clusters
    • blooms in August at high altitudes

  • Tetradymia canescens / spineless horsebrush

    • shrub - up to 3 feet tall and across; round
    • small, yellow composite flowers in clusters of 4 to 8
    • dandelion-like seeds often present with flowers
    • primary leaves short and linear; long-lived
    • secondary leaves in axils of primaries are short-lived
    • primary leaves are not spines

Showing 109–120 of 128 results