Linear-leaved Whitestem Goldenbush - Ericameria discoidea var. linearis
Haplopappus macronema var. linearis, Ericameria linearis
* (see State Rank Reason below)
MNPS Threat Rank
State Rank Reason (see State Rank above)
This is the commoner of the two varieties of Haplopappus macronema that occur in Montana. It is reported (Lesica, 2003 communication) to be quite common throughout southwest Montana.
Stems ascending to erect, 10–40 cm; twigs white-tomentose. Leaves linear, 1–4 cm long, stipitate-glandular, sometimes tomentose, twisted; axillary fascicles sometimes present. Inflorescence cymiform or racemose with 1 to several heads. Involucres obconic, 9–15 mm high; phyllaries subequal, lanceolate, glandular, inner white, outer green. Rays absent. Disk flowers 10–22; corolla 6–10 mm long. Achenes oblong, 5–6 mm long, pubescent. Sagebrush steppe, grasslands, often along roads; montane, rarely lower (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)
Flowering in July and August.
Openings in sagebrush-grasslands in the foothills and montane zones.