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smooth bog-asphodel, smooth tofieldia, white false asphode l, white featherling

false asphodel, tofieldia

Habit Herbs, perennial, rhizomatous, glabrous.
Stems

25–90 cm.

scapelike, sometimes with 1–3 leaves near base, smooth.

Leaves

blades to 30 cm × 6 mm.

equitant, 2-ranked;

blade linear.

Inflorescences

open, 20–100-flowered, 3–25 cm;

bracts navicular, margins entire;

bracteoles forming epicalyx, 3-lobed, lobes acute.

terminal, racemose, open to dense, sometimes spikelike, bracteate, sometimes bracteolate, elongating in fruit;

bracteoles connate in epicalyx.

Flowers

tepals white, 3–4.5 mm, inner tepals longer, wider than outer;

stamens 3–4 mm;

ovary narrowly ovoid;

styles 0.4–0.8 mm;

pedicel 1.5–4 mm.

inserted singly;

tepals persistent, 6, in 2 somewhat dissimilar series, distinct;

stamens 6;

filaments dilated basally, strongly flattened (except T. coccinea);

anthers basifixed, 2-locular, introrse, without appendages;

ovary superior, stipitate, apocarpous basally, glabrous;

intercarpellary nectary present;

styles 3.

Fruits

capsular, broadly ellipsoid to globose or obovoid, chartaceous, glabrous, dehiscence septicidal, then adaxially loculicidal.

Capsules

broadly ellipsoid, 3–4 mm.

Seeds

1–1.3 mm.

reddish brown, without appendages.

x

= 15.

Tofieldia glabra

Tofieldia

Phenology Flowering late summer–fall.
Habitat Savannas, pocosins, marshy ground, moist sandy soil
Elevation 0–200 m (0–700 ft)
Distribution
from FNA
NC; SC
[WildflowerSearch map]
[BONAP county map]
from USDA
North America; Eurasia
[BONAP county map]
Discussion

Species 7 or 8 (3 in the flora).

Following the example of J. G. Baker (1879) and R. R. Gates (1918), this treatment of Tofieldia excludes the species of sect. Triantha, which is recognized instead as a distinct genus; see J. G. Packer (1993). Tofieldia sometimes has been treated very broadly, to include not only Triantha but also Pleea (W. B. Zomlefer 1997c).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Key
1. Margins of bracts 3-lobed; bracteoles absent.
T. pusilla
1. Margins of bracts ± entire; bracteoles 3-lobed.
→ 2
2. Stems 2–20 cm; inflorescences 0.5–2.5 cm; tepals 2–2.5 mm.
T. coccinea
2. Stems 25–90 cm; inflorescences 3–25 cm; tepals 3–4.5 mm.
T. glabra
Source FNA vol. 26, p. 61. FNA vol. 26, p. 60. Author: John G. Packer.
Parent taxa Liliaceae > Tofieldia Liliaceae
Sibling taxa
T. coccinea, T. pusilla
Subordinate taxa
T. coccinea, T. glabra, T. pusilla
Name authority Nuttall: Gen. N. Amer. Pl. 1: 235. (1818) Hudson: Fl. Angl. ed. 2, 157. (1778)
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