State Rank Reason (see State Rank above)
Native to parts of eastern and central North America and introduced into Montana. This is the most abundant pigweed in the state.
- Details on Status Ranking and Review
Redroot Amaranth (Amaranthus retroflexus) Conservation Status Review
Review Date =
Monoecious. Stems erect, reddish below, 10–100 cm with sparsely pubescent foliage. Leaf blade lanceolate to ovate, 2–10 cm long, just longer than petiole. Inflorescence often red-tinged, dense, terminal and axillary panicles; bracts lanceolate-attenuate, 3–5 mm long, short-pointed. Flowers: sepals 5, ca. 3 mm long with blunt to rounded tips and excurrent midveins; stamens 4 to 5. Utricle ca. 2 mm, nearly as long as sepals (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)