Mentzelia nuda (Pursh) Torr. & A.Gray

Bractless blazingstar (en)

Species

Angiosperms > Cornales > Loasaceae > Mentzelia

Characteristics

Plants winter annual, biennial, or perennial, candelabra-form, perennials with ground-level caudices. Stems solitary (or multiple as wound response), erect, straight; branches distal, distal longest, antrorse, straight; hairy. Leaves: blade 37–120 × 5–24.4 mm, widest intersinus distance 4.8–19.6 mm; proximal oblanceolate to elliptic, margins serrate, teeth 14–30, slightly antrorse, 0.6–4.9 mm; distal elliptic to lanceolate, base not clasping, margins serrate, teeth 12–30, slightly antrorse, 0.7–4.7 mm; abaxial surface with simple grappling-hook, complex grappling-hook, and needlelike trichomes, adaxial surface with simple grappling-hook and needlelike trichomes. Bracts: margins pinnate. Flowers: petals white, 22.6–49 × 3.6–10.3 mm, apex acute, glabrous abaxially, stamens white, 5 outermost petaloid, filaments narrowly spatulate, slightly clawed, 20–47 × 3–10.2 mm, without anthers, second whorl without anthers; anthers straight after dehiscence, epidermis smooth; styles 11.5–18.5 mm. Capsules cylindric, 14.5–29 × 6.9–12.3 mm, base tapering or rounded, not longitudinally ridged. Seeds: coat anticlinal cell walls wavy, papillae 4–8 per cell. 2n = 20.
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

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 4-10

Usage

Uses medicinal
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 nuda unspecified picture

Distribution

Mentzelia nuda world distribution map, present in United States of America

Identifiers

LSID urn:lsid:ipni.org:names:157477-2
WFO ID wfo-0001073691
COL ID 3ZSKW
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Bartonia nuda Mentzelia nuda Mentzelia stricta Hesperaster nudus Hesperaster strictus Touterea stricta Nuttallia stricta Torreya nuda Mentzelia nuda var. stricta Mentzelia nuda var. integrifolia Mentzelia nuda var. subpinnatifida