Brassicaceae
Showing 1–12 of 20 results
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Alyssum desertorum / desert madwort
- short crucifer with teeny leaves, no basal rosettes
- short inflorescence with numerous teeny yellow flowers... short-lived
- seed capsules mature by mid-July, ca. 40/stalk
- disturbed sites of any kind
- often in dense populations
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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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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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Boechera pauciflora / elegant rockcress
- small, insignificant brassica on rocky soils, with sagebrush
- rosette of small, hairy, spatulate leaves
- single flowering stalk, 6" or more tall, covered with clasping, hairy leaves
- flowers 4-petals, purple (usually) flowers with yellow centers
- may be seen after snowmelt parasitized with yellow pseudoflowers
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Boechera retrofracta / reflexed rockcress
- spring blooming crucifer (brassica)
- white or lavender, pendent, bell-shaped flowers
- many flowers on a single stalk (raceme)
- hairy rosette and stem leaves
- usually in rocky, sagebrush communities
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Capsella bursa-pastoris / shepherd’s purse
- small crucifer with terminal clusters of teeny white flowers
- rosette of small, maybe toothed, leaves
- very distinctive, notched, triangular fruits - like shepherd's "purses"
- found pretty much anywhere that has/had bare soil
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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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Descurainia pinnata / western tansy mustard
- another stupid yellow crucifer
- erect stem, up to 30 inches
- deeply lobed leaves, without petioles up-stem
- often near or under sagebrush, otherwise dry, disturbed and crappy soils
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Draba nemorosa / yellow whitlow-grass
- teeny, often silvery plant with teeny yellow 4-petal flowers
- rosette leaves have trichomes even when not really silvery
- annual ephemeral seen soon after snowmelt
- usually exposed near or on rocks, dry slopes
- flat, elliptical seed capsules
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Erysimum asperum / prairie-rocket wallflower
- yellow flowers, large for a crucifer
- flowers in clusters above foliage
- oval/elliptical leaves, to 4" long... hairy
- long thin fruit pod (silique) perpendicular to stem, may curve upward
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Erysimum capitatum / western wallflower
- yellow (usually) 4-petaled flowers at top of stem
- inflorescence may be as big as a baseball, and round
- mostly basal rosette of leaves
- cauline leaves narrow with small teeth
- siliques horizontal to nearly vertical; relatively long
- variety of habitats, but not wetlands
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Erysimum cheiranthoides / wormseed wallflower
- yellow, 4-petaled flower, less than 1/3 inch across
- lance shaped or elliptical, sessile leaves varying little in size or shape
- leaf margins entire or coarsely toothed
- ribbed stems
- ascending or erect siliques with short pedicels
- disturbed and waste areas
Showing 1–12 of 20 results