Rubus argutus
naturalizedRosaceae

Rubus argutus

Sawtooth Blackberry

Naturalized (non-native)non-native

Introduced and now reproducing on its own in the wild.

Rubus argutus is a North American species of prickly bramble in the rose family. It is a perennial native to the eastern and south-central United States from Florida to Texas, Missouri, Illinois, and Maine. Common names are sawtooth blackberry or tall blackberry because of its habit of growing up to 2 meters (80 inches) in height.

Read more on Wikipedia →
summary via Wikipedia · CC BY-SA
Seasonality
22 flowering · 8 fruiting annotations · iNaturalist · fetched Jul 2026
JFMAMJJASONDpeak
flowering (peak February) fruiting (peak February)

This is an inference, not a schedule. The curve reflects when observers annotated flowering and fruiting — which tracks observer effort as well as plant behavior, and pools all elevations and islands into one signal. Hawaiʻi’s microclimates vary enormously; a species may fruit in January at sea level and June at elevation. Use this to know when to look, then look.

Gallery · 6 · iNaturalist
open-licensed photos · click any to view its source
Where documented · 38 ahupuaʻa
documented occurrences · iNaturalist + GBIF · iNaturalist 200 · GBIF 262 records
Waimea · KauaʻiiNat 62 · GBIF 71
Keauhou · HawaiʻiiNat 46 · GBIF 62
Kalalau · KauaʻiiNat 29 · GBIF 24
Honopū · KauaʻiiNat 9 · GBIF 12
Pāpaʻikou · HawaiʻiiNat 7 · GBIF 11
Humuʻula · HawaiʻiiNat 6 · GBIF 11
Kalialinui · MauiiNat 9 · GBIF 8
Mākaha · OʻahuiNat 5 · GBIF 9
Hakalau · HawaiʻiiNat 4 · GBIF 4
Kahuku · HawaiʻiiNat 4 · GBIF 4
Makawao · MauiiNat 2 · GBIF 5
Waiʻanae · OʻahuiNat 3 · GBIF 3
ʻĀpua · HawaiʻiiNat 2 · GBIF 2
Keaʻau · HawaiʻiiNat 1 · GBIF 3
Kaʻohe Mauka · HawaiʻiiNat 1 · GBIF 1
Kahanahāiki · OʻahuiNat 1 · GBIF 1
Wainiha · KauaʻiiNat 1 · GBIF 1
Pūlehuiki · MauiiNat 1 · GBIF 1
Paukaʻa · HawaiʻiiNat 1 · GBIF 1
Pūlehunui · MauiiNat 1 · GBIF 1
Kalihi · OʻahuiNat 1 · GBIF 1