Illinois Natural History Survey - University of Illinois

Yucca flaccida
Weak-leaf yucca, Spanish bayonet, Adam's needle, weak-leaf yucca
Taxonomy

Synonyms: Yucca filamentosa var. flaccida, Yucca filamentosa var. smalliana, Yucca smalliana

Subspecific taxa:

Classification:

Other taxonomic & nomenclature sources: USDA PlantsITISThe Plant ListIPNI

Images

   
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Species Distribution
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County Map Legend
Absent:
Not known from county
Medium confidence:
Medium or unknown confidence;
often old records or unverifiable observations
Medium-high confidence:
Often observations by expert botanists
High confidence:
Often vouchered herbarium records
Planted / introduced:
Native species introduced outside historic range,
or only in planted locations within county (e.g., restorations)
Historic / extirpated:
Only historic records for the species; likely extirpated
(Note that this category is not yet functional)

North American distribution maps for this species: FLNAUSDA PlantsBONAPBISON

Collection & Observation Phenology [?]

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F
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M
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A
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M
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J
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J
0
A
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S
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O
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N
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D
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Collection & Observation Timeline [?]

Species Status

Status/Listing: No Information

Notes:

Origin: North America

Species Description

General: Monocot, perennial

Roots:

Shoots: alternate leaf arrangment; entire leaf margin; Parallel leaf venation; awl-shaped leaf shape

Inflorescence: panicle

Flowers: perfect; 3 merous; regular; white, others; hypogynous ovary position

Fruit: capsule

Physiology: autotrophic; CAM C02 fixation

Ecology & Natural History

Habitat: Species is distributed in gardens; roadsides, railroads, open woods.

ILPIN Notes: Fleshy succulent flowers of this and other yuccas are used fresh in salads, cooked, made into fritters, or mixed with meats. Cooked seed pods can be eaten (Medsger). Species is native of East coast. Species escaped from cultivation. Szarek, S. R., and I. P. Ting. 1977. The occurrence of crassulacean acid metabolism among plants. Photosynthetica 11: 330-342.

Functional Relationships:

Human Relationships:

  • Edibility [?] : yes
  • Showy Flowers:

Wildlife and Livestock Information:

  • Food Value:
  • Cover Value:

Coefficient of Conservatism (C-value) [?] :

  • Entire State:
  • Chicago Area:

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