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Persicaria barbata

Bernice Puahi Bishop Museum · CC BY-NC · GBIF · full resolution

BISH 170797Botany

Persicaria barbata

bearded knotweed

As recorded: Polygonum barbatum L.

Plantae › Tracheophyta › Magnoliopsida › Caryophyllales › Polygonaceae

Collected by: Ramos, M.; Edano, G.G.E. Edano →M. Ramos →
Collector number: 36712
Date: October 1, 1919
Locality: Mt. Tubuan
Island: Mindanao
Region: Zamboanga, Philippines
Record type: Preserved specimen

14 Bishop specimens of Persicaria barbata · collected 1893–1980Species page ›

Persicaria barbata observed alive

This specimen was collected in 1919. Since 2000, iNaturalist observers have recorded 276 research-grade sightings in the wild, most recently on 2026-10-27.

Persicaria barbata observed 2026-10-27

2026-10-27

6Q3V+75, Kota, Rajasthan 324008, India

(c) Noopur🍀, some rights reserved (CC BY-NC)

Persicaria barbata observed 2026-10-05

2026-10-05

741台灣臺南市善化區

(c) garlice99, some rights reserved (CC BY-NC)

Persicaria barbata observed 2026-10-01

2026-10-01

內惟埤文化園區, 鼓山區, 高雄市, TW

no rights reserved

Persicaria barbata observed 2026-09-26

2026-09-26

台灣屏東縣

(c) 陳育維, some rights reserved (CC BY-NC)

Persicaria barbata observed 2026-09-23

2026-09-23

947台灣屏東縣滿州鄉, 加都魯溪

(c) 洪阿愷, some rights reserved (CC BY-NC)

Persicaria barbata observed 2026-09-15

2026-09-15

Kaohsiung, Kaohsiung, Taiwan

(c) 方伊琳(阿鈣), some rights reserved (CC BY-NC)

Observations and photos from iNaturalist, shown only when openly licensed.

Cite this specimen

Persicaria barbata. BISH 170797. Bernice Pauahi Bishop Museum, Honolulu. GBIF occurrence 5956676404. Accessed via explore.bishopmuseum.org/specimens/bish/170797.

Record sources

GBIF occurrence 5956676404 ↗
Data license: CC_BY_NC_4_0
Last harvested October 26, 2026