Flora of North America species comparison

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Pectis angustifolia var. fastigiata
Photo is of parent taxon

lemonscent, Texas chinchweed
Habit Annuals or perennials, 5–15 cm; herbage spicy-scented.
Leaves

10–40 × 1–2 mm, bases of distal blades not notably expanded.
Peduncles

3–30 mm.
Phyllaries

narrowly oblanceolate, 2.5–4.5 mm, widest near apices, each with a conspicuous, subterminal oil-gland 0.5–1 mm plus 1 or 2 pairs of smaller submarginal oil-glands.
Cypselae

2.5–3.5 mm;

pappi usually of 1–7 bristles or awns, sometimes coroniform, usually less than 1 mm.
2n

= 24.

Pectis angustifolia var. fastigiata
Phenology Flowering Jun–Nov.
Habitat Open areas in grasslands and open woodlands, mostly on shallow limestone soils
Elevation 100–700 m (300–2300 ft)
Distribution
from FNA
TX
[BONAP county map]
Discussion

Variety fastigiata is known only from the Edwards Plateau region of central Texas, mostly on limestone soils. It appears to intergrade in the western portion of its range with var. angustifolia.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 21, p. 229.
Parent taxa Asteraceae > tribe Heliantheae > subtribe Pectidinae > Pectis > Pectis angustifolia
Sibling taxa
P. angustifolia var. angustifolia, P. angustifolia var. tenella
Synonyms P. fastigiata, P. texana
Name authority (A. Gray) D. J. Keil: Rhodora 79: 60. (1977)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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