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Mexican yellow star-grass

fringe yellow star-grass, rushy hypoxis

Leaves

(1–)2–4(–9) mm wide, soft, stiff, densely pubescent.

0.3–1 mm wide, hard, stiff, nearly glabrous or with scattered trichomes near base.

Scape

4–12(–16) cm, topped by 2 opposite bracts.

(5–)6–16(–19) cm.

Inflorescences

racemose, 1–3-flowered;

proximal 2 flowers, when present, always paired;

bracts (3–)4–8(–11) mm.

racemose, 1–2(–3)-flowered;

proximal 2 flowers, when present, not paired;

bracts 1–7(–12) mm.

Flowers

tepals (3–)4–7(–8) × 1.3–2.5 mm, shorter to longer than pedicel, ± equaling ovary;

anthers 1–2 mm;

ovary oblanceoloid, 3–6(–9) × 1–2 mm, densely pubescent;

pedicel 1–6 mm, shorter than bracts.

tepals 6–13(–15) × 2–4 mm, usually shorter than pedicel, longer than ovary;

anthers (1.3–)1.8–3.3 mm;

ovary obconic, (2–)3–5(–7) × 1.5–2.5 mm, densely pubescent;

pedicel (5–)10–26(–28) mm, usually 2+ times longer than bracts.

Seeds

light brown, dull, 1–1.4(–1.5) mm, muricate.

black, lustrous, 0.7–1 mm, with low, rounded sculpturing.

Hypoxis mexicana

Hypoxis juncea

Phenology Flowering summer. Flowering year round, most commonly in spring.
Habitat Pine-oak woodlands Seasonally flooded pinelands
Elevation 2000–2500 m (6600–8200 ft) 0–100 m (0–300 ft)
Distribution
from FNA
AZ; Mexico
[BONAP county map]
from FNA
AL; FL; GA; NC; SC
[WildflowerSearch map]
[BONAP county map]
Discussion

Hypoxis mexicana is common in Mexico; it is rarely collected in Arizona.

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

Source FNA vol. 26, p. 203. FNA vol. 26, p. 203.
Parent taxa Liliaceae > Hypoxis Liliaceae > Hypoxis
Sibling taxa
H. curtissii, H. hirsuta, H. juncea, H. rigida, H. sessilis, H. wrightii
H. curtissii, H. hirsuta, H. mexicana, H. rigida, H. sessilis, H. wrightii
Synonyms H. filifolia
Name authority Schultes & Schultes f.: in J. J. Roemer et al., Syst. Veg. 7(2): 761. (1830) Smith: Spic. Bot., 15, plate 16. (1792)
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