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Cyperaceae family

Tuberous Bulrush Bolboschoenus glaucus

Tuberous Bulrush is an introduced plant, found in the lower 48 states.

More about this plant

Bolboschoenus glaucus, the tuberous bulrush, is a widespread species of flowering plant in the family Cyperaceae. It is native to most of Africa, Madagascar, southern Europe, the Black and Caspian Sea regions, Western and Central Asia, Mongolia, Pakistan, and India, and it has been introduced to the United States and central Europe. A facultative wetland species, it has been assessed as Least Concern. Its nutlets and tubers are edible, and its charred remains appear in large quantities in Near Eastern archaeological sites from the Late Epipalaeolithic to the Pre-Pottery Neolithic. Wikipedia →

Growing & care

USDA PLANTS · TRY
Conditions
Sources · Conditions
Cold hardiness (derived) — Hardiness
Hardiness
≥ zone 7 derived from its U.S. range
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.

Wildlife & pollinators

How pollinator value is scored →
❧ Caterpillar hosts Documented caterpillar host
Named species (a documented Nearctic sample, not exhaustive) from NHM HOSTS (CC0).
Wildlife & visitors 1 bird

Open records of who else uses Tuberous Bulrush — a generalist food-web signal, kept separate from the keystone Ecological Value.

Recorded eaten by 1 bird species (fruit, seed, browse):

Anser anser · Greylag Goose
Interaction records (observations, not exhaustive) from GloBI → (CC0). Counts are distinct species; names are the most-recorded. Common names from Wikidata (CC0).
Species thumbnails re-hosted from iNaturalist — Creative Commons, credited per image (hover for credit). Click any species to see it on iNaturalist. Not exhaustive; many taxa have no openly-licensed photo yet.
Sources for this entry (14) 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 — US-RIIS v2.0 (USGS)
[07] Description — Wikipedia (CC BY-SA)
[08] Ecological value — GloBI
[09] Cold hardiness (derived) — Derived from U.S. range × USDA PHZM zones
[10] Wildlife & visitors — GloBI — Global Biotic Interactions (CC0)
[13] Caterpillar species — NHM HOSTS (CC0)
[14] County range — GBIF Open Data — open-licensed occurrences (CC0/CC-BY) → county
Spot an error or have a better photo? Every field links to its source, and the whole dataset is open.
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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