WILDFLOWERS OF NEW MEXICO

 

Flower heads with deep-golden rays and yellow disk flowers, grow on 3–5-foot tall, hairy stems. The branching plants spread by rhizomes and can form bushy colonies in open areas. Note the pairs of opposite, serrated leaves and a outer row of blunt to slightly pointed phyllaries beneath the heads.


FLOWERS: June–August. Blooms on stems (peduncles) 1–6-inches long (2.5–15 cm) with1–15 flower heads, each 1 1/2–3-inches wide (3.8–7.5 cm); 8–20 yellow ray flowers surround a disk of yellow florets; 2 rows of phyllaries beneath the head, the outer oval, blunt-tipped. Both ray and disk flowers are fertile.


LEAVES: Opposite. Short leaf stems (petioles) to 3/4-inch long (20 mm); blades lance-shaped to oval, 2 1/2–6-inches long (6–15 cm) by 1–4 3/4-inches wide (2.5–12 cm), margins serrated, tip pointed, upper surface rough-hairy, lower surface soft-hairy to hairless.


HABITAT: Sandy, gravelly loam soils, meadows, moist areas, disturbed areas; plains, pinyon-juniper, ponderosa-Douglas fir, aspen forests.


ELEVATION: 6,200–9,000 feet.


RANGE: CO, NM; widespread in all states east of Rocky Mts.


SIMILAR SPECIES: The nearly stemless paired leaves, deep-golden rays, and spreading, blunt outer phyllaries help separate this species from the many other yellow sunflowers.


NM COUNTIES: North to south through central NM in mid- to high-elevation habitats: Bernalillo, Colfax, Lincoln, Los Alamos, Mora, Otero, Rio Arriba, Roosevelt, San Miguel,  Santa Fe, Taos, Torrance, Union.

OX  EYE  SUNFLOWER

HELIOPSIS  HELIANTHOIDES

Aster Family, Asteraceae
Perennial herb

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Opposite leaves with serrated margins.

Outer row of blunt-tipped phyllaries beneath flower head (still in bud at arrow).

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