Mentzelia pumila Torr. & A.Gray

Dwarf mentzelia (en)

Species

Angiosperms > Cornales > Loasaceae > Mentzelia

Characteristics

Plants biennial, candelabra-form. Stems solitary, erect, straight; branches distal, distal longest, antrorse, straight; hairy. Leaves: blade 19–82 × 4.8–22.1 mm, widest intersinus distance 2.7–6.7 mm; proximal oblanceolate to elliptic, margins serrate to pinnate, teeth or lobes 10–22, slightly antrorse or perpendicular to leaf axis, 1–5.5 mm; distal elliptic to lanceolate, base not clasping, margins pinnate, lobes 8–14, usually perpendicular to leaf axis, 0.8–7 mm; abaxial surface with simple grappling-hook and complex grappling-hook trichomes, adaxial surface with simple grappling-hook and needlelike trichomes. Bracts: margins entire or toothed. Flowers: petals golden yellow, 7.6–12.3 × 2–3.8 mm, apex usually acute, occasionally rounded, glabrous abaxially; stamens golden yellow, 5 outermost petaloid, filaments narrowly spatulate, slightly clawed, 6.4–11.8 × 1.1–2.7 mm, without anthers, second whorl with anthers; anthers straight after dehiscence, epidermis smooth; styles 5.6–7.8 mm. Capsules cylindric, 10.8–20 × 5.3–7.6 mm, length more than 2 times diam., base tapering, not longitudinally ridged. Seeds: coat anticlinal cell walls straight, papillae 4–5 per cell. 2n = 22.
More
The flowers are bright yellow and star shaped. The seed capsule is bullet shaped.
Life form
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 -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Hillside slopes, sandy and clayey soils; at elevations from 1,100-2,500 metres
More
It is a temperate plant.
Light 7-9
Soil humidity 1-6
Soil texture 1-6
Soil acidity 3-7
Soil nutriment -
Hardiness (USDA) 5-10

Usage

The seeds are ground for meal.
Uses medicinal smoking
Edible seeds
Therapeutic use Laxative (root), Toothache (unspecified), Pediatric Aid (unspecified), Strengthener (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by seedlings.
Mode seedlings
Germination duration (days) 6 - 21
Germination temperacture (C°) 12 - 15
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Mentzelia pumila unspecified picture

Distribution

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

Identifiers

LSID urn:lsid:ipni.org:names:157505-2
WFO ID wfo-0001073744
COL ID 3ZSLQ
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Mentzelia pumila Touterea pumila Nuttallia pumila Hesperaster pumilus Mentzelia pumila var. pumila