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Nolina erumpens

(Foothill Bear-Grass)

Common Names

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Click on the language to view common names.

Common Names in English:

Beargrass, Foothill Bear-Grass, Foothill Beargrass, Foothill Nolina, Mesa Sacahuista

Common Names in Spanish:

Palmilla De Chihuahua

Description

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Genus Nolina

Plants perennial , cespitose or arborescent , acaulescent to short-caulescent, scapose , from branched, woody caudices or bulblike structures; usually forming colonies with few to many rosettes. Stems to 25 dm. Leaves forming rosettes; blade linear , not rigid or fibrous , bases broadly expanding, margins serrulate or entire. Scape 0.5-25 dm. Inflorescences paniculate , rarely racemose, 3-18 dm; bracts caducous or occasionally persistent . Flowers 2-5 per node, functionally unisexual , pistillate flowers with staminodes, staminate flowers with reduced pistils; tepals white to cream or tan, 1.3-5 mm, apex glandular ; ovary superior; pedicel jointed near middle . Fruits capsular , 3-locular, 3-lobed, thin-walled or sometimes firm-walled, often inflated , mostly notched at base and apex or rounded distally; dehiscent , often splitting irregularly. Seeds closely or loosely invested in capsules, globose , turgid . x = 19.

Species ca. 30: North America (se and sw United States), n and nc Mexico.

In areas of west Texas, New Mexico, and Arizona, the species of Nolina are not always well defined. There is variation in the presence or absence of marginal teeth on the leaves and placement of the inflorescences within or beyond the leaves. Collectors should take good notes about the plant habit and morphology and include these with their collections . Further study is needed on Nolina throughout its range . Some species of Nolina are extremely infrequent. Some are on federal and/or state rare and endangered species lists , and possibly some of those listed with a state should be listed federally.

J. C. Dice (1988) studied section Arborescens of Nolina in the United States, and presented extensive descriptions and discussion of N. bigelovii, N. parryi, N. cismontana, and N. interrata.[1]

Physical Description

Species Nolina erumpens

Plants acaulescent , occasionally arborescent , cespitose; rosettes from vertical , subterranean , branched caudices. Stems 0-2.5 m. Leaf blades stiff, somewhat carinate , concavo-convex , 80-170 cm × 9-18 mm, not glaucous; margins serrulate , with close-set cartilaginous teeth; apex lacerate . Scape 1.5-3 dm, to 1.2 cm diam. Inflorescences paniculate , 4-9 dm × 7-18 cm, contained within rosettes, not surpassing leaves; bracts caducous ; bractlets to 2 mm, margins hyaline . Flowers: tepals 1.6-2.2 mm; fruiting pedicel ascending , proximal to joint 1-1.5 mm, distal to joint 1.5-2.5 mm. Capsules thin-walled, inflated , 2.6-4.4 × 3.5-5.7 mm, indistinctly notched at apex. Seeds closely invested in capsules, rounded , bursting ovary walls, 1.5-2.5 × 1-1.5 mm. [source]

The leaves of Nolina erumpens have teeth that are at right angles to the margin. Compared with N. texana in common range , N. erumpens flowers much later in the spring . [source]

Habit: Subshrub , Shrub

Flowers: Bloom Period: April.

Habitat

Rocky hillsides of limestone or igneous slopes in shrub-grasslands; 900--2300 m [2].

Biology

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Reproduction

Duration: Perennial

Taxonomy

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Unambiguous Synonyms

  1. Beaucarnea erumpens (Torrey) Baker
  2. Dasylirion erumpens Torrey in W. H. Emory, Rep. U. S. Mex. Bound. (1): 216. 1859


Notes

Name Status: Accepted Name . Latest taxonomic scrutiny: 15-Mar-2000

Similar Species

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Members of the genus Nolina

ZipcodeZoo has pages for 57 species, subspecies, varieties, forms, and cultivars in this genus:

N. affinis · N. altamiranoana · N. arenicola (Transpecos Beargrass) · N. atopocarpa (Florida Bear-Grass) · N. beldingi · N. beldingii · N. beldingi var. deserticola · N. bigelovii (Bigelow's Bear-Grass) · N. bigelovii parryi · N. bigelovii var. bigelovii (Bigelow's Nolina) · N. bigelovii wolfii · N. brittoniana (Britton´s Bear-Grass) · N. caudata · N. cespitifera · N. cismontana (California Beargrass) · N. durangensis · N. elegans · N. erumpens (Foothill Bear-Grass) · N. erumpens var. compacta · N. georgiana (Georgia Bear-Grass) · N. gracilis · N. greenei · N. greenii · N. guatemalensis (Curly Nolina) · N. hartwegiana · N. histrix · N. hookeri · N. humilis · N. interrata (Dehesa Beargrass) · N. javanica · N. juncea · N. lindheimerana · N. lindheimeriana (Devil´s-Shoestring) · N. loderi · N. longifolia (Oaxacan Tree Nolina) · N. matapensis (Sonoran Tree Bear Grass) · N. micrantha (Chaparral Bear Grass) · N. microcarpa (Small-Seeded Beargrass) · N. nelsoni · N. nelsonii (Nelsons Bear Grass) · N. palmeri · N. palmeri brandegeei · N. palmeri var. brandegeei · N. paradoxa · N. parryi (Palmilla De Parry) · N. parryi wolfii · N. parviflora · N. pliabilis · N. pumila · N. recurvata (Elephant's Foot Tree) · N. recurvata var. albomarginata 'Yellow Star' (Pony Tail Palm) · N. rigida · N. stricta · N. texana (Devils Shoestring) · N. tuberculata · N. watsonii · N. wolfii

More Info

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Further Reading

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  • Dice, J. C. 1988. Systematic Studies in the Nolina bigelovii-N. parryi (Nolinaceae) Complex. M.S. thesis. San Diego State University.
  • Trelease, W. 1911. The desert group Nolineae. Proc. Amer. Philos. Soc. 50: 404-443.

    • Notes

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    Contributors

    Data Sources

    Accessed through GBIF Data Portal February 28, 2008:

    Identifiers

    Footnotes

    1. William J. Hess "Nolina". in Flora of North America Vol. 26 Page 413, 414, 415, 416, 419. Oxford University Press. Online at EFloras.org. [back]
    2. "Nolina erumpens". in Flora of North America Vol. 26 Page 416, 418. Oxford University Press. Online at EFloras.org. [back]
    Last Revised: 2009-09-07