Mentzelia paradoxensis J.J.Schenk & L.Hufford

Species

Angiosperms > Cornales > Loasaceae > Mentzelia

Characteristics

Plants biennial, usually cylindric, rarely candelabra-form. Stems solitary, erect, straight; branches distal or along entire stem, ± equal, perpendicular to stem, especially proximal and mid-stem, or slightly antrorse, especially distal, straight; hairy. Leaves: blade 38.1–95 × 6–17(–26) mm, widest intersinus distance 1.6–4.7 mm; proximal oblanceolate, lanceolate, or elliptic, margins dentate to serrate or pinnate, teeth or lobes 10–22, slightly antrorse or perpendicular to leaf axis, 2–6.8 mm; distal elliptic to lanceolate, base not clasping, margins dentate to serrate or pinnate, teeth or lobes 8–16, slightly antrorse or perpendicular to leaf axis, 2.4–8.5 mm; abaxial surface with simple grappling-hook, complex grappling-hook, and needlelike trichomes, adaxial surface with needlelike and occasionally simple grappling-hook trichomes. Bracts: margins entire. Flowers: petals golden yellow, 8.3–14.5(–17.2) × 1.7–5.3 mm, apex acute to rounded, hairy abaxially; stamens golden yellow, 5 outermost petaloid, filaments narrowly spatulate, slightly clawed, 4.9–12.5 × 1.2–3.8 mm, with or without anthers, second whorl with anthers; anthers occasionally twisted or straight after dehiscence, epidermis papillate or not; styles 5.4–10.4 mm. Capsules cup-shaped, 5–9 × 3.7–6.5 mm, base rounded, not longitudinally ridged. Seeds: coat anticlinal cell walls straight to slightly wavy, papillae 6–11 per cell. 2n = 20.
Life form biennial
Growth form -
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Foliage retention evergreen
Sexuality hermaphrodite
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Flower color
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Nitrogen fixer -
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Environment

Light -
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Usage

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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 paradoxensis world distribution map, present in United States of America

Identifiers

LSID urn:lsid:ipni.org:names:77111901-1
WFO ID wfo-0000749824
COL ID 3ZSL7
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Mentzelia paradoxensis