Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Caryophyllales
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Check out EDDMapS.org to see where this has been reported.
Read more about Spiny Amaranth at Vascular Plants of North Carolina.
SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)
SYNONYMOUS WITH Flora of North America
SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 066-03-006:
Amaranthus spinosus FAMILY Amaranthaceae
SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
To see larger pictures, click or hover over the thumbnails.
JK Marlow jkm130128_172
January Spartanburg County SC
Stems with paired nodal spines, per Weakley's Flora (2012).
Richard and Teresa Ware rtw_amaranthus_spinosus
Simple or compound terminal staminate spikes, usually green to silvery green, per Flora of North America.
JK Marlow jkm130928_680
September Spartanburg County SC
Plant freely branched, robust, 5dm or more tall, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Flora of North America
Manual of the Southeastern Flora (Small, 1933, 1938)
Habitat: Fields, gardens, roadsides, barnyards, pastures, per Weakley's Flora
Non-native: tropical America
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.
Click here to see a map showing all occurrences known to SERNEC, a consortium of southeastern herbaria. (Zoom in to see more detail.)
IS THE PLANT "ARMED"?
Stems armed with paired stipular nodal spines
Green to silvery-green
1-5 sepals (or sepals absent) subtended by 3 bracts
Flowers in terminal thyrses
TO LEARN MORE about this plant, look it up in a good book!
- Wildflowers of the Atlantic Southeast (Cotterman, Waitt, & Weakley, 2019) p462
- Field Guide to the Wildflowers of Georgia (Chafin, 2016) p025
- Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005) p074
If a search such as "Carex leptalea var. leptalea" doesn't deliver the results you want, try "Carex leptalea".
Or, to minimize chances of a misspelling, try just "Carex le".
Less is more: If "pencil flower" doesn't deliver the results you want, try "pencil".