roadsides
Showing 1–12 of 56 results
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Agropyron cristatum / crested wheatgrass
- cool season grass growing in dense tufts
- easily recognized by planar spike
- spikelets overlap and are angled with respect to the stem
- common
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Arctium minus / lesser burdock
- purple to pink to lavender thistle-like flowers with hooked bracts
- nasty hooked seed heads
- very large, heart-shaped leaves
- found in a wide variety of disturbed areas
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Artemisia absinthium / wormwood
- deeply lobed leaves; grey-green (hairy); aromatic (like sage)
- stems to 4' tall; up to 20 per plant
- small clusters of teeny yellow flowers in drooping heads
- disturbed areas and may be weedy
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Astragalus miser / timber milkvetch
- compound leaves with small, egg-shaped leaflets
- teeny, pea-like flowers - bicolored but overall blue/purple
- keel tip is purple and pointed
- small, hairy seed pods
- grassland, meadows, and other open communities
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Barbarea vulgaris / yellow rocket
- showy yellow brassica with relatively large flowers
- leaves deeply lobed with larger terminal lobe, smaller toward top of stems
- common on roadsides and waste places in spring
- siliques about an inch long and curving upward, with beaks and pedicels
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Bassia scoparia / burningbush
- large, annual herb (forb)
- leaves long-ish and narrow
- inflorescence a highly branched spike with teeny green/yellow flowers
- may form huge, invasive colonies
- whole plant turns red in fall
- a tumbleweed
- especially in disturbed areas and wastelands in the Valley
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Beteroa incana / hoary alyssum
- dense clusters of teeny white flowers
- 4 petals, each with a notch
- fruit is a short, fat-ish seed pod (silicle)
- found in pastures and all manner of disturbed habitats
- toxic to horses
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Bromus inermis / smooth brome
- clump forming grass but clonally spreading
- erect, leafy
- in winter, leaves curl up (like ribbon)
- florescence is a nodding panicle, standing well above leaves
- spikelets bronze/purple at maturity; anthers yellow
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Bromus tectorum / cheatgrass
- short bunchgrass, 2 to 30 in at floweirng
- panicle with all florets to one side; long awns
- early season growth, flowering, seed drop
- florets green, turning purple as seeds mature
- highly invasive!
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Cardamine hirsute / hairy bittercress
- small brassica/crucifer with compound leaves
- teeny white, 4 petal flowers with 4 stamens in racemic clumps
- a widespread weed, including gardens and lawns
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Carduus nutans / musk thistle
- quite large, very purple flower heads
- spiny everything... leaves, stems, bracts
- biennial - large rosette of nasty leaves in first year
- dandelion-like fruit that flies away like the down of a thistle
- disturbed lands... pastures, wastelands, roadsides, construction sites
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Carex spectabilis / showy sedge
- roadsides or in wet and seasonally flooded meadows
- showy inflorescences... yellow (stamens) above white (stigmas) on a purple background
- grass/iris-like leaves up to 2 feet tall
Showing 1–12 of 56 results