Mentzelia ravenii H.J.Thomps. & J.E.Roberts

Species

Angiosperms > Cornales > Loasaceae > Mentzelia

Characteristics

Plants candelabra-form, (5–)20–45 cm. Basal leaves persisting; petiole present or absent; blade linear-lanceolate, margins deeply to shallowly lobed. Cauline leaves: petiole absent; blade ovate-lanceolate to lanceolate, to 18 cm, margins deeply lobed to dentate. Bracts green with prominent white base usually conspicuously extending outwards from midvein, ovate, 5.6–8.4 × 1.8–3.9 mm, width 1/5–2/3 length, not concealing capsule, margins 3–5-lobed. Flowers: sepals 2–6 mm; petals orange proximally, yellow distally, 5–11(–13) mm, apex retuse; stamens 20+, 3–7 mm, filaments monomorphic, filiform, unlobed; styles 3.5–8 mm. Capsules clavate, 8–23 × 2–3 mm, axillary curved to 45° at maturity, usually inconspicuously longitudinally ribbed. Seeds 15–30, in 2+ rows distal to mid fruit, tan, dark-mottled, usually irregularly polygonal, occasionally triangular prisms proximal to mid fruit, surface tuberculate under 10× magnification; recurved flap over hilum absent; seed coat cell outer periclinal wall domed, domes on seed edges more than or equal to 1/2 as tall as wide at maturity. 2n = 36.
Life form -
Growth form herb
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Foliage retention evergreen
Sexuality hermaphrodite
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Mature height (meter) 0.2 - 0.45
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Environment

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Usage

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Edible -
Therapeutic use -
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Cultivation

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

LSID urn:lsid:ipni.org:names:157514-2
WFO ID wfo-0001073700
COL ID 3ZSLR
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Mentzelia ravenii