Mentzelia tiehmii N.H.Holmgren & P.K.Holmgren

Tiehm's blazing star (en)

Species

Angiosperms > Cornales > Loasaceae > Mentzelia

Characteristics

Plants perennial, bushlike, with subterranean caudices. Stems multiple, erect, straight; branches along entire stem, all ± equal, antrorse, upcurved; hairy. Leaves: blade 19–47.5 × 5.8–9.1 mm, widest intersinus distance 4.6–7.1 mm; proximal oblanceolate to elliptic, margins dentate, teeth 6–20, perpendicular to leaf axis, 0.5–1.9 mm; distal lanceolate, deltate, or cordate, base clasping, margins entire or dentate, teeth 0–6, perpendicular to leaf axis, 0.4–1.4 mm; abaxial surface with complex grappling-hook trichomes, adaxial surface with complex grappling-hook and needlelike trichomes, both surfaces green, moderately hairy. Bracts: margins entire. Flowers: petals golden yellow, 7.7–10.8 × 1.8–4.8 mm, apex rounded, glabrous abaxially; stamens golden yellow, 5 outermost petaloid, filaments narrowly spatulate, slightly clawed, 7–7.3 × 1.2–2 mm, with anthers, second whorl with anthers; anthers twisted after dehiscence, epidermis smooth; styles 5.8–8 mm. Capsules cup-shaped, 4–6.6 × 4–7.4 mm, base rounded, not longitudinally ridged. Seeds: coat anticlinal cell walls straight, papillae 15–46 per cell.
Life form perennial
Growth form herb
Growth support -
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) -
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
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Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
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Soil acidity -
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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 -
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Optimum temperature (C°) -
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Vigor -
Productivity -

Distribution

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

Identifiers

LSID urn:lsid:ipni.org:names:325527-2
WFO ID wfo-0001266846
COL ID 3ZSMJ
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Mentzelia tiehmii