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

Pacific blazingstar (en)

Species

Angiosperms > Cornales > Loasaceae > Mentzelia

Characteristics

Plants candelabra-form, 8–45 cm. Basal leaves persisting; petiole present or absent; blade linear-lanceolate to linear, margins usually irregularly deeply lobed, lobes pointed. Cauline leaves: petiole absent; blade ovate-lanceolate to linear, to 15(–22) cm, margins few-lobed or entire. Bracts green, ovate to ovate-lanceolate, 2.9–8.2 × 1.1–1.9 mm, width 1/8–1/2 length, not concealing capsule, margins entire. Flowers: sepals 2–6 mm; petals yellow to orange proximally, yellow distally, 3–8 mm, apex rounded or acute apex; stamens 20–40, 2–7 mm, filaments monomorphic, filiform, unlobed; styles 2–6 mm. Capsules clavate, 11–31 × 1.5–3 mm, axillary curved to 250° at maturity, usually inconspicuously longitudinally ribbed. Seeds 15–50, in 2+ rows distal to mid fruit, tan, usually not, occasionally sparsely, dark-mottled, usually irregularly polygonal, occasionally triangular prisms proximal to mid fruit, surface colliculate under 10× magnification; recurved flap over hilum absent; seed coat cell outer periclinal wall domed, domes on seed edges less than 1/2 as tall as wide at maturity. 2n = 36.
Life form -
Growth form herb
Growth support -
Foliage retention evergreen
Sexuality hermaphrodite
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Mature width (meter) -
Mature height (meter) 0.08 - 0.45
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Flower color
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Nitrogen fixer -
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Environment

Light -
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Hardiness (USDA) 5-11

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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Distribution

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

Identifiers

LSID urn:lsid:ipni.org:names:157482-2
WFO ID wfo-0001073692
COL ID 3ZSKX
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Mentzelia obscura