Mentzelia nuda - (Pursh) Torr. & Gray
Bractless Stickleaf
Other English Common Names: Goodmother
Other Common Names: bractless blazingstar
Taxonomic Status: Accepted
Related ITIS Name(s): Mentzelia nuda (Pursh) Torr. & Gray (TSN 503790)
Unique Identifier: ELEMENT_GLOBAL.2.156708
Element Code: PDLOA03150
Informal Taxonomy: Plants, Vascular - Flowering Plants - Blazingstar Family
 
Kingdom Phylum Class Order Family Genus
Plantae Anthophyta Dicotyledoneae Violales Loasaceae Mentzelia
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Concept Reference
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Concept Reference: Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Concept Reference Code: B94KAR01HQUS
Name Used in Concept Reference: Mentzelia nuda
Conservation Status
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NatureServe Status

Global Status: G5
Global Status Last Reviewed: 16Mar1989
Global Status Last Changed: 16Mar1989
Rounded Global Status: G5 - Secure
Nation: United States
National Status: N3N5

U.S. & Canada State/Province Status
United States Arizona (SNR), Colorado (SNR), Illinois (SNA), Kansas (SNR), Missouri (SNR), Montana (S1S2), Nebraska (SNR), New Mexico (SNR), Oklahoma (SNR), South Dakota (SNR), Texas (SNR), Wyoming (S3)

Other Statuses

NatureServe Global Conservation Status Factors

Range Extent Comments: E. MT and SD south to CO, KS, and TX. Peripheral.

Other NatureServe Conservation Status Information

Distribution
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Global Range: E. MT and SD south to CO, KS, and TX. Peripheral.

U.S. States and Canadian Provinces
Color legend for Distribution Map

U.S. & Canada State/Province Distribution
United States AZ, CO, ILexotic, KS, MO, MT, NE, NM, OK, SD, TX, WY

Range Map
No map available.


U.S. Distribution by County Help
State County Name (FIPS Code)
MT Custer (30017)*, Powder River (30075), Roosevelt (30085)*, Rosebud (30087)*, Valley (30105)*
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
10 Prarie Elk-Wolf (10060001)+*, Lower Tongue (10090102)+*, Lower Powder (10090209)+, Lower Yellowstone-Sunday (10100001)+*
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
Ecology & Life History
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General Description: Bractless Mentzelia is an herbaceous biennial or short-lived perennial with one to a few erect, branched stems that arise from a taproot and are up to 1 m high. The lance-shaped, alternate leaves are 4-10 cm long, have deeply-toothed margins, and are petiolate below but sessile above. Foliage is covered with short, barbed hairs that cause it to stick to clothing like velcro. Flowers that open in late afternoon are borne on short stalks arising from the axils of reduced upper leaves, or bracts. Each flower is 4-9 cm across and has 10, non-overlapping, white petals and numerous exserted stamens. The calyx forms a deep bowl with 5 narrow, pointed lobes that are 10-25 mm long; it also contains the ovary and bears the stamens. The cylindrical seed capsules are 2-3 cm long.
Diagnostic Characteristics: M. DECAPETALA has ten white petals, its larger flowers are 8-15 cm across, and its petals overlap.
Economic Attributes Not yet assessed
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Management Summary Not yet assessed
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Population/Occurrence Delineation Not yet assessed
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Population/Occurrence Viability
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U.S. Invasive Species Impact Rank (I-Rank) Not yet assessed
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Authors/Contributors
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Element Ecology & Life History Edition Date: 07Dec1994
Element Ecology & Life History Author(s): KAJ

Botanical data developed by NatureServe and its network of natural heritage programs (see Local Programs), The North Carolina Botanical Garden, and other contributors and cooperators (see Sources).

References
Help
  • Brown, D. K. and R. B. Kaul. 1981. Floral structure and mechanism in Loasacae. American Jounal of Botany 68(3):361-372.

  • Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.

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