Mentzelia longiloba (Adonis Blazing Star)

2/19/05 Hwy. 78, N. Algodones Dunes Wilderness Area,

Imperial Sand Dunes, Imperial County, CA

LIFE LIST NOTES:

COMMON NAME: Adonis Blazing Star

SPECIES: Mentzelia laevicaulis

FAMILY: Loasaceae (Stickleaf Family)

LIFE LIST DATE: 2/19/2005

LOCATION: Hwy. 78, North Algodones Dunes Wilderness Area, Imperial Sand Dunes, Imperial County, CA

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From Jepson eFlora Taxon Page:

Habit: Biennial or Perennial herb 15--100 cm. 

Stem: erect, glabrous to hairy. 

Leaf: 1--15 cm, 1--2 cm wide, lower oblanceolate to elliptic, crenate to pinnate-lobed, upper lanceolate to elliptic, toothed. 

Inflorescence: bracts 0 or linear to lanceolate, generally entire, green. 

Flower: sepals 6--12 mm; petals 12--20 mm, 4--6 mm wide, yellow, tip obtuse to round; stamens 3--17 mm, filaments of 5 outermost 10--20 mm, 3--6 mm wide, spoon-shaped, tip round, generally without anthers; style 8--13 mm. 

Fruit: erect, 10--18 mm, 7--10 mm wide, cylindric to occasionally cup-shaped. 

Seed: 3--4 mm, 2.5--3.5 mm wide, lenticular, winged, +- white. 

Ecology: Sandy flats, creosote-bush scrub; 

Elevation: < 800 m. 

Bioregional Distribution: D; 

Outside California: Arizona, northern Mexico. 

Flowering Time: Mar--Jun 

Synonyms: Mentzelia multiflora (Nutt.) A. Gray subsp. longiloba (J. Darl.) Felger; Mentzelia multiflora var. longiloba (J. Darl.) Kartesz

eFlora Treatment Author: Joshua M. Brokaw, John J. Schenk & Barry Prigge