non-native

Showing 25–36 of 59 results

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
Lactuca serriola / prickly lettuce
- numerous dime-sized yellow flowers in an "airy" panicle
- buds droop or hang in a "shepherd's hook" before opening
- seed heads are dandelion-like, but more delicate
- highly divided, prickly leaves
- mostly in "waste" areas
Leucanthemum vulgare / oxeye daisy
- bright, white "petals", 2-3" across; yellow centers
- s/he loves me, s/he loves me not
- glossy green, spoon-shaped leaves in a 2 foot dome
- may form large colonies
- potentially wide spread
Linaria vulgaris / yellow toadflax
- fine, threadlike leaves, plants up to 3 feet tall
- flowers similar to snapdragon, pale yellow with orange lower lip, long spur
- flowers in tight terminal clusters
- plants typically in patches
- "noxious" weed in Idaho
Lotus corniculatus / birds-foot trefoil
- roadsides and other disturbed areas
- numerous bright yellow, pea-like flowers
- three, oval and pointed leaflets
- seed pods are arranged like toes on a bird's foot
Malva neglecta / cheeseweed
- leaves look like grocery store geraniums (Pelargonium)
- flowers are small, pink-ish and often buried in the foliage
- fruits are small (ca. 1/2 in) and round
Medicago lupulina / black medic
- prostrate, long creeping stems
- compound leaves with 3 small, rounded leaflets
- teeny yellow flowers in very small button-like clusters
- disturbed areas with compacted soil - roadsides & wastelands
Medicago sativa / alfalfa
- escaped forage plant
- bright purple flowers in dense clusters
- pea-like flowers with broad upper petal, 2 small laterals, keel
- compound leaves with 3 leaflets, the central one extended on a short stalk
- disturbed sites - roadsides, full sun
Melilotus spp / sweetclover
- yellow or white, floppy, tubular flowers in long-ish clusters (racemes)
- 3 small, pointy leaflets with petioles
- rangy, unkempt branching
- roadsides, waste places and sometimes in fields, grasslands
Nasturtium officinale / watercress
- emergent aquatic in slow-ish flowing steams
- four petaled white flowers in clusters
- thick, shiny leaves
- often in dense colonies
Onobrychis viciifolia / sainfoin
- forage legume, taller than alfalfa
- pink pea-like flowers with striped banner petal and darker keel
- spiky inflorescence (a raceme) blooming from bottom up - up to 50 flowers
- pinnately compound leaves with single terminal leaflet
- naturalized with sagebrush and mountain shrubs, but also in the central Valley