Mentzelia pectinata var. chrysopetala

OBISPO BLAZING STAR

Common Name: LOASA FAMILY
Habit: Annual to subshrub; hairs needle-like, barbed, occasionally stinging. Leaf: alternate [opposite], generally +- pinnate-lobed; stipules 0. Inflorescence: cyme, raceme. Flower: bisexual, radial; sepals generally 5, generally persistent; petals generally 5, free or fused to each other or filament tube; stamens 5--many, filaments thread-like to flat, occasionally fused at base or in clusters; petal-like staminodes occasionally present; pistil 1, ovary inferior, chamber generally 1, placentas generally 3, parietal, style 1. Fruit: capsule or achene. Seed: 1--many.
Genera In Family: 18+ genera, 250 species: especially America (Africa, Pacific).
eFlora Treatment Author: Larry Hufford & Barry Prigge, except as noted
Scientific Editor: Douglas H. Goldman, Bruce G. Baldwin.

Common Name: BLAZING STAR
Habit: Annual to perennial herb, sometimes subshrub-like; hairs barbed to needle-like, not stinging; stems pale pink or generally +- white, branched or not. Leaf: linear to ovate, entire to pinnate-lobed; basal in rosettes, generally petioled; cauline generally sessile, +- reduced distally on stem. Inflorescence: generally cyme (or flower 1); bracts green to white-centered, margin green. Flower: sepals lanceolate to deltate, persistent; petals generally 5, free, white to yellow or orange; stamens generally many, +- free, generally unequal, inner filaments generally thread-like; outermost stamens opposite sepal lobes often modified, +- widened, or petal-like, with or without anthers or not; ovary generally cylindric, placentas generally 3, style thread-like, stigma 3-furrowed or -lobed. Fruit: capsule, cup-, barrel-, or urn-shaped to narrowly cylindric, occasionally curved. Seed: generally many, shape variable, sometimes winged.

eFlora Treatment Author: Joshua M. Brokaw, John J. Schenk, Barry Prigge & David Keil
Reference: Schenk & Hufford 2020 Syst Bot Monogr 110:1--230

Habit: Annual 8--54 cm. Stem: erect to decumbent, hairy. Leaf: 2--12 cm; generally toothed to lobed. Inflorescence: bracts lanceolate to ovate, generally toothed to lobed, green. Flower: sepals 3--13 mm; petals 8--22 mm, obovate, orange to yellow, base red to orange; stamens 4--11 mm; style 5--13 mm. Fruit: erect to curved < 90°, 12--35 mm, 2--4 mm wide, obconic; seed rows +- 3 distal to mid-fruit. Seed: 1--2 mm, irregularly angular distal to mid-fruit, sides concave, ×-section occasionally triangular with grooves along longitudinal edges proximal to mid-fruit, tan, dark-mottled or not; seed coat cells generally pointed or domed, in age > 1/2 tall as wide on seed surface edges.