Scirpus acutus Bigelow

var. occidentalis (S. Watson) Beetle

 

=Scirpus acutus

 

Cyperaceae (Sedge Family)

                                        

Native

 

Common Bulrush

                                       August Photo

 

Plant Characteristics:  Perennial with stout rootstocks and thick brown rhizomes; culms stout, cylindric,  to 2 cm. thick, erect, to 5 m. tall, rather hard and firm, olive-green; lvs. reduced to basal sheaths with blades to 8 cm. long, the sheath margins becoming fibrillose; invol. leaf solitary, terete, shorter than the infl., appearing as a continuation of the culm; infl. dense capitate to umbellate; spikelets ovate to cylindric, 8-18 mm. long; scales oblong-ovate, red dotted, viscid-villous above, short awned; bristles slender, downwardly barbed; style 2-fid or 3-fid; aks. 2-3 mm. long, lenticular or sometimes triangular.

 

Habitat:  Occasional, wet places below 5000 ft.; several Plant Communities; s. Calif.; to B.C., Atlantic Coast.  May-August.

 

Name:  Latin, scirpus, the classical name.  (Munz, Flora So. Calif. 902).  Latin, acutus, sharp, pointed.  (Jaeger 6).  Latin, occidentalis, western.  (Jaeger 170).

 

General:  Rare in the study area, having only been found only once and this along Backbay Dr. below the north end of Eastbluff. (my comment).       Used in basket making for both warps and wefts (foundations and wrappings).  Heizer & Elsasser, page not recorded).    Sedges were used by the Indians for the inside of foot coverings to keep the foot insulated and dry.  (lecture by Charlotte Clarke, author of Useful and Edible Plants of California, April 1987).      Scirpus species have been known to cause hay fever and asthma.  (Fuller 382).      The Chumash Indians of the Santa Barbara area used Scirpus spp. as the principal material for mats and house thatching; the rhizomes were also eaten.  Poison Oak was treated by rubbing on dry ashes from burned tule, Scirpus acutus, or rush Juncus textilis.  (Timbrook, J. "Chumash Ethnobotany: A Preliminary Report". Journal of Ethnobiology. Dec. 1984, 141-169).     The Yokut Indians of the Great Central Valley of California made boats from Scirpus acutus and S. californicus.  The boat was constructed from three tule bundles well over 16 feet long each tapered toward both ends. Two bundles would form the sides and were 9 to 11 inches thick when compressed and bound.  The central bundle was 15 inches in diameter at the middle portion.  (Campbell 392).       A cosmopolitan genus of about 200 species.  (Munz, Flora So. Calif. 902).       California plants are all or nearly all var. occidentalis.  (Hickman, Ed. 1147, 1358).   Roberts in his 1998, A Checklist of the Vascular Plants of Orange County, California, does not list var. occidentalis, only Scirpus acutus.        When black was wanted in a basket design, the rhizomes of scirpus species were used.  Normally creamy white the rhizomes can be turned black by soaking 3 to 6 months with acorns, a piece of iron, ashes or walnut husks.  The resulting color is dark brown to black.  Shredded tule was used for baby diapers, bedding and menstrual padding.  Skirts were made by Indian women from bulrush and in bad weather the men wore shredded tule caps which were tied around the neck and belted at the waist.  Indians who lived near the coast or marshes and mudflats used bulrush to make large round mud-shoes for their feet so they could walk without sinking.  Duck decoys were made of tule.  (Stevens, Michelle L. “ETHNOECOLOGY OF SELECTED WETLAND PLANTS” FREMONTIA, A Journal of the California Native Plant Society Vol. 32, No. 4 October 2004 pp. 7-15).      For additional information on the Bulrushes see S. americanus, S. californicus and S. robustus.  (my comment).

 

Text Ref:  Hickman, Ed. 1147; Mason 323; Munz, Flora So. Calif. 902; Roberts 43.

Photo Ref:  Aug 1 86 # 4,5.

Identity: by R. De Ruff, confirmed by F. Roberts

First Found August 1986.

Computer Ref:  Plant Data 90.

Have plant specimen.

Last edit 4/6/05.                                   

 

                                             August Photo