Overview

Distribution

National Distribution

United States

Origin: Native

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

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Fla.
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Physical Description

Morphology

Description

Caudex up to 1 m or slightly more. Leaves dense rosulate, rigid up to ± 1 m long; apex long pointed, 12-18 mm long lamina glabrous and green on both surfaces, channelled in transverse section. Inflorescence ± 5 m or more long, paniculate with many bulbils. Flowers c. 7.5 cm long, greenish-yellow, funnel-shaped, arranged in compact clusters. Perianth segments 6, longer than the tube, lanceolate, spreading. Stamens 6, attached to the perianth tube, anthers ± 10 mm long. Style as long as stamens; stigma 3-lobed.
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Description

Plants arborescent, trunks 1–3 (–4) m, frequently suckering; rosettes not cespitose, 10–15 × 15–20 dm. Leaves spreading to recurved, 70–100(–200) × 7–10 cm; blade green, without bud-prints, linear-lanceolate, rigid, adaxially concave toward apex, abaxially convex toward base; margins slightly wavy, armed, teeth single, 2–3 mm, 1–2 cm apart, often with some interstitial smaller teeth; apical spine dark brown, conical, 1–2 cm. Scape 3–5 m. Inflorescences paniculate, often bulbiferous; bracts caducous; lateral branches 10–18, ascending, comprising distal 1/2 of inflorescence, longer than 4 cm. Flowers 15 or more per cluster, erect, 6–8 cm; perianth greenish yellow, tube funnelform, 11–13 × 4–6 mm, limb lobes incurved, drying reflexed on tube, subequal, 18–22 mm; stamens long-exserted; filaments inserted on 2 levels at or slightly above mid perianth tube, erect, yellow, 4–5 cm; anthers yellow, 22–25 mm; ovary 4–5 cm, neck absent. Capsules short-pedicellate, ellipsoid to oblong, 3.5–5 cm, apex beaked. Seeds not seen. 2n = 120, 150, 160, 180, 190.
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Type Information

Isotype for Agave decipiens Baker
Catalog Number: US 125454
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Original publication and alleged type specimen examined
Preparation: Pressed specimen
Collector(s): C. Dodge
Year Collected: 1892
Locality: Southern Florida., Florida, United States, North America
  • Isotype: Baker, J. G. 1892. Bull. Misc. Inform. Kew. 1892: 184.
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Isotype for Agave decipiens Baker
Catalog Number: US 125455
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Original publication and alleged type specimen examined
Preparation: Pressed specimen
Collector(s): C. Dodge
Year Collected: 1892
Locality: Southern Florida., Florida, United States, North America
  • Isotype: Baker, J. G. 1892. Bull. Misc. Inform. Kew. 1892: 184.
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Isotype for Agave decipiens Baker
Catalog Number: US 125456
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Original publication and alleged type specimen examined
Preparation: Pressed specimen
Collector(s): C. Dodge
Year Collected: 1892
Locality: Southern Florida., Florida, United States, North America
  • Isotype: Baker, J. G. 1892. Bull. Misc. Inform. Kew. 1892: 184.
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Ecology

Habitat

Sandy soil in hammocks; 0m.
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Life History and Behavior

Cyclicity

Flowering/Fruiting

Flowering mid fall--early winter.
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Conservation

Conservation Status

National NatureServe Conservation Status

United States

Rounded National Status Rank: NNR - Unranked

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NatureServe Conservation Status

Rounded Global Status Rank: GNR - Not Yet Ranked

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Notes

Comments

Agave decipiens might have been introduced from Latin America by Native Americans; it is not otherwise known from the wild. The proliferation of chromosome numbers suggests prolonged human propagation and a probable hybrid origin. Until demonstrated otherwise, the species is considered a rare and localized native species known only from a few sites in southern Florida. H. S. Gentry (1982) discounted the suggestion that A. decipiens was found on the Yucatán peninsula of Mexico. He considered such plants to be A. angustifolia.
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Comments

A cultivated species reported from Lahore by Parker (op. cit.). It can be distinguished from other species by its glossy green leaves which are channelled in transverse section. Marginal spines are green, small and sharp. Baker (op. cit.) mentions the marginal spines as brown-black and not green (fide Parker, l.c.).
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