Mentzelia crocea Kellogg

Sierra blazingstar (en)

Species

Angiosperms > Cornales > Loasaceae > Mentzelia

Characteristics

Plants candelabra-form, 30–70(–100) cm. Basal leaves persisting; petiole present or absent; blade lanceolate to linear, margins usually shallowly, rarely deeply, lobed. Cauline leaves: petiole absent; blade ovate to lanceolate, to 40 cm, margins deeply to shallowly lobed. Bracts green, broadly ovate to lanceolate, 6–12.7 × 3.5–7.7 mm, width 1/2–4/5 length, not concealing capsule, margins 3–10-lobed. Flowers: sepals 7–20 mm; petals usually orange, rarely yellow, proximally, yellow distally, usually elliptic to ovate, rarely obovate, 21–42 × 8–17(–21) mm, apex acute; stamens 20+, 11–40 mm, filaments heteromorphic, 5 outermost linear, inner filiform, unlobed; styles 20–35 mm. Capsules clavate, 20–35 × 3–5 mm, axillary curved to 45° at maturity, usually inconspicuously longitudinally ribbed. Seeds 30–40, in 2+ rows distal to mid fruit, tan, dark-mottled, irregularly polygonal, surface minutely tessellate under 10× magnification; recurved flap over hilum absent; seed coat cell outer periclinal wall domed, domes on seed edges less than 1/2 as tall as wide at maturity. 2n = 36.
Life form annual
Growth form herb
Growth support -
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.3 - 0.7
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) -

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) 5 - 21
Germination temperacture (C°) 12 - 15
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
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Vigor -
Productivity -

Images

Flower

Mentzelia crocea flower picture by Jim Conroy (cc-by-sa)

Distribution

Mentzelia crocea world distribution map, present in United States of America

Identifiers

LSID urn:lsid:ipni.org:names:157412-2
WFO ID wfo-0001073668
COL ID 3ZSHS
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Mentzelia crocea Mentzelia lindleyi subsp. crocea