Mentzelia micrantha Torr. & A.Gray

San luis blazingstar (en)

Species

Angiosperms > Cornales > Loasaceae > Mentzelia

Characteristics

Plants wandlike or candelabra-form, 10–80 cm. Basal leaves persisting; petiole present or absent; blade lanceolate to linear, margins irregularly deeply lobed to dentate. Cauline leaves: petiole present or absent (proximal leaves), absent (distal leaves); blade lanceolate to linear (proximal leaves), orbiculate to lanceolate (distal leaves), to 18 cm, margins irregularly deeply lobed to dentate proximally, dentate or entire distally. Bracts green, orbiculate to ovate, 3.4–6.6 × 2.5–5.9 mm, width 3/4 to ± equal length, often concealing capsule, margins sinuate or entire. Flowers: sepals 1–3 mm; petals yellow, 2-5 mm, apex acute; stamens 10–20, 1.5–4 mm, filaments heteromorphic, 5 outermost elliptic, distally 2-lobed, inner filiform, unlobed; styles 2–3(–5) mm. Capsules cylindric, 6–13 × 1.5–2.5 mm, axillary curved to 20° at maturity, usually inconspicuously, occasionally prominently, longitudinally ribbed. Seeds 4–10, in 1 row distal to mid fruit, dark brown or tan, dark-mottled, triangular prisms, surface ±smooth to minutely tessellate under 10× magnification; recurved flap over hilum absent; seed coat cell outer periclinal wall flat. 2n = 18.
Life form annual
Growth form herb
Growth support -
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.1 - 0.8
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 8-12

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 -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Mentzelia micrantha unspecified picture

Distribution

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

Identifiers

LSID urn:lsid:ipni.org:names:545439-1
WFO ID wfo-0001073685
COL ID 3ZSKN
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Acrolasia micrantha Mentzelia micrantha Acrolasia micrantha var. stricta Mentzelia micrantha var. stricta