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Compilation
Pectis glaucescens

21 Images see all

Pectis brevipedunculata Sch.Bip. [family COMPOSITAE]
Isosyntype of Pectis linearifolia Urban [family ASTERACEAE]
Pectis domingensis Urb. [family COMPOSITAE]
Syntype of Pectis lessingii Fernald [family ASTERACEAE]
Isosyntype of Pectis lessingii Fernald [family ASTERACEAE]
Syntype of Pectis lessingii Fernald [family ASTERACEAE]
Isosyntype of Pectis lessingii Fernald [family ASTERACEAE]
Syntype of Pectis lessingii Fernald [family ASTERACEAE]
Isosyntype of Pectis lessingii Fernald [family ASTERACEAE]
Syntype of Pectis lessingii Fernald [family ASTERACEAE]
Type of Pectis domingensis Urb. [family ASTERACEAE]
Filed as Pectis glaucescens (Cass.) D.J.Keil [family ASTERACEAE]
Syntype of Pectis lessingii Fernald [family ASTERACEAE]
Lectotype of Pectis lessingii Fernald [family ASTERACEAE]
Isosyntype of Pectis lessingii Fernald [family COMPOSITAE]
Syntype of Pectis lessingii Fernald [family ASTERACEAE]
Isolectotype of Pectis lessingii Fernald [family ASTERACEAE]
Isosyntype of Pectis lessingii Fernald [family ASTERACEAE]
Syntype of Pectis lessingii Fernald [family ASTERACEAE]
Isotype of Pectis domingensis Urb. [family COMPOSITAE]
Filed as Pectis glaucescens (Cass.) D.J.Keil [family ASTERACEAE]
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Name

Identification
Pectis glaucescens (Cass.) D. J. Keil [family COMPOSITAE ] (stored under name); Verified by Data not digitized, Isotype of Pectis domingensis Urb. [family COMPOSITAE ] Verified by Data not digitized,
Related name
  • Pectis leptocephala
  • Pectis linifolia
  • Pectis brevipedunculata
  • Pectis glaucescens
  • Pectis domingensis
  • Pectis prostrata
  • Pectis lessingii
Common name
  • Sand dune chinchweed, Flora of North America Vol. 21

Flora

Entry for Pectis glaucescens (Cassini) D. J. Keil [family COMPOSITAE]
Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 21,
Names
Pectis glaucescens (Cassini) D. J. Keil [family COMPOSITAE], Sida, 11: 386. 1986
Chthonia glaucescens Cassini [family ], in F. Cuvier, Dict. Sci. Nat. ed., 2, 9: 173. 1817
Pectis leptocephala (Cassini) Urban [family COMPOSITAE]
Pectis lessingii Fernald [family COMPOSITAE]
Treatment Author(s)
David J. Keil
Information
Annuals or perennials, 2–50 cm (across or high); herbage spicy-scented. Stems prostrate to erect, usually sparsely to densely puberulent (sometimes in decurrent lines), sometimes glabrate. Leaves narrowly linear, 10–35 × 0.2–1.8 mm, margins with 1–5 pairs of setae 1–2 mm, faces glabrous (abaxial submarginally dotted with broadly elliptic to circular oil-glands 0.2–0.3 mm, sometimes with additional, scattered oil-glands). Heads borne singly or in diffuse, cymiform arrays. Peduncles filiform, (3–)7–35(–54) mm. Involucres cylindric. Phyllaries distinct, linear-oblanceolate, 4–5 × 0.8–1 mm (dotted with 1–2 elliptic, subapical oil-glands 0.2–0.3 mm, sometimes with additional, smaller submarginal or scattered oil-glands). Ray florets 5; corollas 3.5–5 mm. Disc florets 3–7; corollas 2–3 mm (2-lipped). Cypselae 2.5–3 mm, strigillose; pappi of 0–5, antrorsely scabrid bristles or slender scales 1–2 mm plus 0–5 entire or irregularly lacerate scales 0.2–0.7 mm. 2n = 48.
Phenology
year round
Altitude range
0–50 m;
Distribution
West Indies (Bahamas).West Indies (Hispaniola).West Indies (Jamaica).USA Fla.
Discussion
Pectis glaucescens is widespread in southern Florida and the Bahamas. Human disturbances, especially road constructions, have created habitats suitable for it. It grows most commonly on limestone soils in open, grassy sites. Occasionally, it is a lawn weed.

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