Seashore Saltgrass

Distichlis spicata

Description 5

General: Grass Family (Poaceae). Inland saltgrass is a native, dioecious low, glabrous perennial, with scaly rhizomes. Culms are erect, varying in heights of 1.5 – 4.5 dm, less tall in dense colonies. Lower leaves consist of sheaths only, which are overlapping and glabrous. Sheath margins are scarious and sparsely ciliated apically. Leaves are mostly cauline and vertically two-ranked. Blades are firm, the edges often flat at the base and folded or rolled inward meeting in the middle, therefore, appearing attenuate. Blades are generally less than 10 cm long. Salt crystals may be found on the leaves and stems. The ligules are stiff, membranous and apically ciliate. Ligules range in lengths between 0.2-0.5 mm long. The inflorescences are dense, spike-like panicles, which range from 5-7 cm long or less. Spikelets are 3-10 flowered and are laterally flattened.

Disarticulation is above the glumes and between the florets. The two glumes are unequal in size. Glumes are keeled and hard on the back. The margins of the glumes are scarious; the first glume is 1-3 nerved and 1.5-2.5 mm long. The second glume is 3-5 nerved and 2-3 mm long. The lemmas are rounded on the back and have 9-11 faint nerves. Lemmas are acute to cuspidate and 3-4 mm long. The lemma margins are scarious. Paleas are 2-nerved, 3-5 mm long, falcate, and are sharply keeled, the keel very finely hispid-ciliate. The palea margins are scarious and are in-rolled.

Sources and Credits

  1. (c) sandy richard, some rights reserved (CC BY-NC-SA), https://www.flickr.com/photos/9428166@N03/2686460471/
  2. (c) Patrick Alexander, some rights reserved (CC BY-NC-ND), http://www.flickr.com/photos/aspidoscelis/6872377743/
  3. (c) sandy richard, some rights reserved (CC BY-NC-SA), https://www.flickr.com/photos/9428166@N03/2686463355/
  4. (c) Vince Scheidt, some rights reserved (CC BY-NC), uploaded by Vince Scheidt
  5. Public Domain, http://eol.org/data_objects/1383042

More Info

Range Map

(c) USDA, all rights reserved

iNat Map