Colors

Data mode

Account

Login
Sign up

Support FSUS...

We've finished our 2024 fundraiser. Many thanks to those who have given! It's not too late to support us (click here)...

Copy permalink to share

Chasmanthium laxum (Linnaeus) Yates. Slender Spikegrass. Phen: May-Oct. Hab: Savanna-pocosin ecotones, sandhill-pocosin ecotones, moist hardwood swamps, other moist habitats. Dist: S. NY, KY, and OK south to s. FL and e. TX.

Origin/Endemic status: Endemic

Taxonomy Comments: See C. sessiliflorum for comments on the suggestion that these two taxa are only varietally or subspecifically distinct.

Synonymy : = Ar, C, ETx1, FNA25, GW1, K1, K3, K4, NY, Pa, Tn, Tx, Va, W, Yates (1966a), Yates (1966c); = Chasmanthium laxum (L.) Yates ssp. laxum – Mo1; = Chasmanthium laxum (L.) Yates var. laxum – NcTx, WH3, Wipff & Jones (1994); = Uniola laxa (L.) Britton, Sterns, & Poggenb. – F, G, HC, RAB, S, S13, Tat

Links to other floras: = Chasmanthium laxum - FNA25

Show in key(s)

Show parent genus

Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: FACW
  • Eastern Mountains and Piedmont: FAC
  • Great Plains: FAC
  • Midwest: FACW
  • Northcentral & Northeast: FACW

Heliophily : 5

Your browser does not support SVGs

Hover over a shape, letter, icon, or arrow on the map for definition or see the legend.

image of plant© Gary P. Fleming | Original Image ⭷
image of plant© Alan Weakley source | Original Image ⭷
image of plant© Alan Weakley source | Original Image ⭷
image of plant© Alan Weakley source | Original Image ⭷
image of plant© Scott Ward | Original Image ⭷
image of plant© Alan Weakley source | Original Image ⭷
image of plant© Collectors SOS | Original Image ⭷
image of plant© Chris Liloia | Original Image ⭷

Feedback

See something wrong or missing on about Chasmanthium laxum? Let us know here: (Please include your name and email if at all complicated so we can clarify if needed.) We greatly appreciate feedback, and will include updates from you in our next webapp update, which can take a few months.


Horticultural Information

NCBG trait

Intro:

Stems:

Leaves:

Inforescence:

Flowers:

Fruits:

Comments:

Height: 2 ft.

plant sale text: Slender woodoats is a SE native grass that produces subtly beautiful upright seed heads. Its tiny seeds are borne in arching panicles. This species is smaller in stature than the better-known river-oats. It is tolerant of low light levels and various soil types. This species is commonly found near bodies of water and grows well in open-canopy forests. Easy to grow in almost any garden, it will reseed unless its seed heads are removed before the seeds drop. The Chasmanthium genus supports up to 7 species of lepidoptera.

bloom table text:

description:

stems:

leaves:

inflorescence:

flowers:

fruits:

comments:

cultural notes:

germination code: 1

native range: eastern & central United States