Nuttall's Linanthus - Linanthastrum nuttallii
Linanthus nuttallii, Leptosiphon nuttallii
State Rank Reason (see State Rank above)
Reported as locally common in the Bitterroot Mountains by Lesica & Shelly (1991).
Taprooted perennial from a woody, branched crown. Stems ascending to erect, usually simple, 5–20 cm. Herbage glabrate, puberulent on the stems. Leaves sessile, opposite, 10–15 mm long, deeply palmately lobed into 5 to 9 linear, mucronate segments, often with axillary fascicles. Inflorescence terminal, compact, leafy-bracted cymes. Flowers 5-merous; calyx 6–7 mm long, puberulent, tube green throughout but with a hyaline membrane between the lobes; corolla white, salverform, tube 6–7 mm long, puberulent, lobes 3–5 mm long. Capsules 4–6 mm long, usually with 1 seed per locule (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)
Open soil in grasslands and on rock outcrops in the montane zone.