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Cyperaceae family
Western Halfchaff Sedge Lipocarpha occidentalis
Native
Western Halfchaff Sedge is an annual grass native to the lower 48 states. It blooms Jun – Jul.
Growing & care
USDA PLANTS · TRY Conditions
Sources · Conditions
Cold hardiness (derived) — Hardiness
- Hardiness
- ≥ zone 9 derived from its U.S. range
Size & form
Sources · Size & form
USDA PLANTS — Lifespan
- Lifespan
- Annual
In the garden
Herb layer — Sits in the herb of a layered food forest or polyculture.Open guide →
Rain garden / bioswale — Rated FACW on the wetland list — tolerates wet feet, so it suits the soggy zone of a rain garden or bioswale that catches and filters runoff.Open guide →
derived roles The garden year bloom → fruit → fall colour
J
F
M
A
M
J
J
A
S
O
N
D
Bloom
Bloom (the flower's colour)
Bloom · Jun – Jul — 14 obs · Herbarium specimens — Park et al. 2023 (CC BY 4.0)
Species characteristics from USDA PLANTS (public domain) + TRY (CC BY) — general guidance, not a
guarantee for your exact site. Deer "browsing" is documented palatability, not a deer-proof claim.
Related plants
More Lipocarpha →
Native
American Halfchaff Sedge
Lipocarpha maculata
○○○○○ 
Native
Awned Halfchaff Sedge
Lipocarpha aristulata
○○○○○ Native
Drummond's Halfchaff Sedge
Lipocarpha drummondii
○○○○○ 
Native
Smallflower Halfchaff Sedge
Lipocarpha micrantha
○○○○○ Native
Rehman's Halfchaff Sedge
Lipocarpha rehmanii
○○○○○ Same genus / family, ranked by ecological value — from the PlantKey catalog
Sources for this entry (9) Open & cited
[01] Scientific name & family — USDA PLANTS (DwCA, Zenodo 17903503)
[02] Growth habit & duration — USDA PLANTS (DwCA, Zenodo 17903503)
[03] Native status & distribution — USDA PLANTS (DwCA, Zenodo 17903503)
[04] Common name — USDA PLANTS (via GBIF)
[05] Invasive / introduced status — USDA PLANTS (DwCA, Zenodo 17903503) — native status
[06] Wetland indicator — USACE National Wetland Plant List (2022)
[07] Bloom period — Herbarium specimens — Park et al. 2023 (CC BY 4.0)
[08] Conservation rank — NatureServe Explorer (CC BY)
[09] Cold hardiness (derived) — Derived from U.S. range × USDA PHZM zones
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Cite this page Open data, please attribute
PlantKey’s data is open under CC BY-SA 4.0 — free to reuse and adapt, with attribution and the same licence. Photos keep their own per-image licence + credit (see Sources above).
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