Mentzelia reverchonii (Urb. & Gilg) H.J.Thomps. & Zavort.

Reverchon's blazingstar (en)

Species

Angiosperms > Cornales > Loasaceae > Mentzelia

Characteristics

Plants biennial or perennial, candelabra-form, perennials with ground-level caudices. Stems solitary, erect, straight; branches distal, distal longest, antrorse, straight to upcurved; hairy. Leaves: blade 24.2–54 × 6.6–29 mm, widest intersinus distance 5.4–13.5(–22.4) mm; proximal oblanceolate to elliptic, margins dentate to pinnate, teeth or lobes 10–20, perpendicular to leaf axis, 1.1–5 mm; distal lanceolate, base not clasping, margins dentate, teeth 8–14, perpendicular to leaf axis, 0.6–3.8 mm; abaxial surface with simple grappling-hook, complex grappling-hook, and occasionally needlelike trichomes, adaxial surface with simple grappling-hook and needlelike trichomes. Bracts: margins usually toothed, occasionally entire. Flowers: petals golden yellow, (9.6–)11.1–14.1(–22) × 2.5–4.2(–5.5) mm, apex acute to rounded, glabrous abaxially; stamens golden yellow, 5 outermost petaloid, filaments narrowly spatulate, slightly clawed, 9.4–13.4(–20) × 2.2–3.7(–5) mm, without anthers, second whorl with anthers; anthers straight after dehiscence, epidermis smooth; styles 8.7–11.4(–13) mm. Capsules usually cylindric, rarely cup-shaped, 9.4–22 × 6–9.1 mm, length usually more than, occasionally a few slightly less than, 2 times diam., base tapering, not longitudinally ridged. Seeds: coat anticlinal cell walls straight, papillae 5–7 per cell. 2n = 18.
Life form perennial
Growth form herb
Growth support -
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
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Root diameter (meter) -
Flower color
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Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
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Hardiness (USDA) 5-10

Usage

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

Cultivation

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

Mentzelia reverchonii world distribution map, present in Mexico and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:157516-2
WFO ID wfo-0001073702
COL ID 3ZSLT
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Mentzelia hintoniorum Mentzelia reverchonii