WILDFLOWERS OF NEW MEXICO

 

With bushy, hairless stems 2–5-feet tall, this robust plant favors open forests with moist soils and stream banks. Note the clusters of yellow flower heads and the arrow-shaped, toothed leaves evenly spaced and only slightly reduced in size up the stem.


FLOWER: July–September. Flat-topped to rounded clusters of flower heads with 8 yellow rays, 3/8–5/8 inch long (9–15  mm), with notched tips, and a yellow disk. Usually 13 phyllaries, evenly-sized, usually green-tipped.


LEAVES: Alternate. Blades narrowly triangular, 1 1/2–4 inches long (4–10 cm) with a broad base and pointed tip; margins strongly saw-toothed.


HABITAT: Moist sandy, gravelly soils, meadows, stream banks, open woodlands; ponderosa pine, mixed conifer, spruce-aspen forests.


ELEVATION: 8,000–11,515 feet.


RANGE: CA, CO, ID, MT, NM, NV, OR, UT, WA, WY.


SIMILAR SPECIES: Tall Ragwort, S. serra, in Rio Arriba Co. in NM, has finely-toothed, lance-shaped leaves with tapered bases.


NM COUNTIES: Mountains of northern NM (and Sierra Co.) in mid- to high-elevation, moist habitats: Colfax, Los Alamos, Mora, Rio Arriba, San Juan, San Miguel, Sandoval, Santa Fe, Sierra, Taos.

ARROWLEAF  RAGWORT

SENECIO  TRIANGULARIS

Aster Family, Asteraceae

Perennial herb

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