Mentzelia densa Greene

Royal gorge blazingstar (en)

Species

Angiosperms > Cornales > Loasaceae > Mentzelia

Characteristics

Plants biennial, bushlike. Stems solitary, decumbent to erect, straight; branches along entire stem, distal or proximal longest, antrorse, straight or upcurved, proximal decumbent; hairy. Leaves: blade 32–86 × 5.8–15 mm, widest intersinus distance 1.7–5.2(–7.1) mm; proximal oblanceolate to elliptic, margins dentate to pinnate, teeth or lobes 6–12, perpendicular to leaf axis, 1.2–6.3 mm; distal elliptic to lanceolate, base not clasping, margins dentate to pinnate, teeth or lobes 4–10, perpendicular to leaf axis, 1.8–5.2 mm; abaxial surface with simple grappling-hook, complex grappling-hook, and occasionally needlelike trichomes, largest trichomes without pearly white bases, adaxial surface with simple grappling-hook and needlelike trichomes. Bracts: margins entire or toothed. Flowers: petals golden yellow, 14.2–19.8 × 3.8–6.5 mm, apex acute to rounded, glabrous abaxially; stamens golden yellow, 5 outermost petaloid, filaments narrowly spatulate, slightly clawed, 12–18.1 × 2.7–4.8 mm, with or without anthers, second whorl with anthers; anthers straight after dehiscence, epidermis smooth; styles 8.3–11.1 mm. Capsules cylindric, 12.2–18 × 4.3–8.3 mm, base tapering, not longitudinally ridged. Seeds: coat anticlinal cell walls wavy, papillae 7–17 per cell. 2n = 20.
Life form
Growth form herb
Growth support -
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
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Flower color
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Environment

Light -
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Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
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Cultivation

Mode -
Germination duration (days) 5 - 21
Germination temperacture (C°) 12 - 15
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Distribution

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

Identifiers

LSID urn:lsid:ipni.org:names:157416-2
WFO ID wfo-0001073669
COL ID 3ZSHX
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Mentzelia densa Hesperaster densus Touterea densa Nuttallia densa Mentzelia pumila var. densa Mentzelia multiflora var. densa