Family Amaranthaceae

Amaranth Family

HAWAII - ENDEMIC

Achyranthes splendens var. rotundata   

Ka'ena Point NAR, Oahu

 

Koko Crater BG, Oahu

 

ACHYRANTHES

Rare coastal shrub on dry rocky slopes & coral plains.  An endangered species occurring from Oahu to Maui.

Nototrichium humile   

Kapi'olani Garden, Oahu

KULU'I

Endangered shrub in dry forests, slopes, & cliffs of NW Oahu & East Maui.

Nototrichium sandwicense   

Koko Crater, Oahu

KULU'I

Locally common shrub in dry forests, slopes, & lava flows of all the main Hawaiian Islands.  Endemic to Hawaii.

Charpentiera tomentosa   

 

Kapi'olani Flower Garden, Oahu

PAPALA

Uncommon endemic shrub or small tree of mesic forests on Oahu, with a few records from Moloka'i to Hawaii.  Stiff leaves have thick raised edges.  Wood is extremely soft & light.  Leaf internodes 1 - 4mm, stems 2 - 6mm just below the apical bud.  Charpentiera obovata has leaf internodes 3 - 10mm, stems 1 - 2mm below apical bud. 


HAWAII - NATURALIZED

Achyranthes aspersa

Waimanalo, Oahu

PRICKLY ACHYRANTHES

Herb found in disturbed roadside areas of Oahu & Hawaii.  Tropics & subtropics worldwide.

Amaranthus spinosus

Waimanalo, Oahu

Kihei, Maui

SPINY AMARANTH

Annual with large spines and red stems.  Weed of dry disturbed lowlands.  Tropics & subtropics worldwide.

Amaranthus viridis

UH Manoa, Oahu

SLENDER AMARANTH

Annual spineless weed of dry disturbed lowlands.  Tropics & subtropics worldwide.

Alternanthera pungens

Waimanalo, Oahu

 

Kaloko, Oahu

Makapu'u, Oahu

KHAKI WEED

Prostrate weed on dry lawns & disturbed lowland areas.  Flowers have sharp tips that break apart upon drying, causing painful wounds if stepped upon with bare feet.  Found throughout the tropics worldwide, native to the Americas.

Gomphrena celosioides

Waimanalo, Oahu

Prostrate weed on roadsides & disturbed areas on Oahu.  Native to South America.

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