WILDFLOWERS OF NEW MEXICO

 
 

Erect stems reach 7–27-inches tall topped with loose clusters of yellow flowers enclosed in angled, keel-like phyllaries. Note the opposite leaves and three leaf-like bracts below the flat-topped flower clusters


FLOWER: July–November. Flat-topped clusters with numerous yellow flower heads at branch tips; 3 leaf-like bracts below each cluster; 2 small leafy bracts beneath each flower head. Each flower head has 0 –1 tiny ray florets, 5–6 disk florets, all enclosed in 3 elliptic, angled, keel-like phyllaries.


LEAVES: Opposite, sessile. Blades linear to lance-shaped, 1 1/4–3 1/2-inches long (3–9 cm); the base slightly clasps the stem; margins weakly toothed, tips pointed.


HABITAT: Moist alkaline, saline, gypseous soils; lake and stream sides, spring seeps disturbed areas; desert flats.


ELEVATION: 3,700–5,000 feet.


RANGE: CO, KA, NM, NV, OK, TX.


SIMILAR SPECIES: Clustered Yellowtops, F. trinervia, mainly in southern NM, has spherical flower clusters in the leaf axils. Clasping Yellowtops, F. chlorifolia, in se NM, has leaves with entire margins and bases that wrap around the stem.


NM COUNTIES: Low- to mid-elevation moist, alkaline habitats: Bernalillo, Cibola, Chaves, Colfax, Dona Ana, Eddy, Guadalupe, Roosevelt, San Juan, Sandoval, Socorro, Valencia.

 

ALKALI  YELLOWTOPS

FLAVERIA  CAMPESTRIS

Aster Family, Asteraceae

Annual herb

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Leaf-like bracts beneath flower cluster (left arrow).

Smaller leafy bracts beneath the flower heads (right arrow).

Opposite, toothed leaves are sessile and slightly clasp the stem.