Common Name: WEAK RUSH
Phylum: MAGNOLIOPHYTA
Class: LILIOPSIDA
Order: JUNCALES
Family: JUNCACEAE
Genus: JUNCUS
Species: DEBILIS
Taxonomic Authority: A. GRAY
Taxonomy References: 002 , 003 , 005
STATE RANK S1
GLOBAL RANK G5
Status References: 001
"Is found as an emergent to mostly submerged aquatic in streams; elsewhere in a variety of moist, sandy habitats, also creeks, ponds, and seepages (on dolomitic substrate)."
Primary Habitat: "Aquatic - river/stream"
"Known only from Ripley and Jefferson counties *02,03,04*."
Known | Likely | Unknown | Not Likely | Historic | Extirpated |
---|---|---|---|---|---|
JEFFERSON | SHANNON | ||||
RIPLEY | ST. LOUIS |
References for distribution: 002 , 003 , 004
Big R.
Current R.
Comments: "Historic record: 11010011 (Eleven Point R.) *04*."
Comments: ""
Oak-Hickory Forest
Oak-Hickory-Pine Forest
Ozark Border: Mississippi River
Ozark: Lower Ozark
Species is associated with "Aquatic" habitats.
Palustrine
Riverine
"Palustrine", "Emergent, persistent",
"Riverine, unknown perennial"
References for Aquatic Associations: 002 , 003
References for Habitat Types:
Streambed
References for Terrestrial Natural Communities: 002 , 003
""
Comments for larval food habits:
""
References for larval food habits:
Comments for Juvenile Food Habits:
""
References Juvenile Food Habits
Comments for Adult Food Habits:
""
References Adult Food Habits
References for egg niches requirements:
References for feeding larvae niche requirements:
References for resting Larvae niche requirements:
References for feeding juvenile niche requirements:
References for resting juvenile niche requirements:
References for feeding Adult niche requirements:
References for feeding adult niche requirements:
References for resting adult niche requirements:
General habitat association specified in comments(00270)
Code | Comment |
---|---|
042 | Occasionally roots at the nodes where aerial stems have become horizontal and in contact with the substrate, presumably following flooding *002*. |
Reproduction (plants):plants monoecious
Reproduction (plants):see comments(042)
Duration of plant:perennial
Life form:herb
Flowering period begins: June
Flowering period ends: August
Origin in state: native
Code | Comment |
---|---|
042 | Occasionally roots at the nodes where aerial stems have become horizontal and in contact with the substrate, presumably following flooding *002*. |
References for life history: 002
Beneficial Management References:
Adverse Management References:
Comments on Management:
References for Management Comments:
Reference Code | Citation |
---|---|
001 | Missouri Natural Heritage Program. 2004. Missouri Species and Communities of Conservation Concern Checklist. Missouri Department Of Conservation. Jefferson City, Missouri. 47 Pp. |
002 | Yatskievych, G. 1999. Steyermark's Flora Of Missouri. Vol.1 Jefferson City, Missouri. Department Of Conservation. 991 Pp. |
003 | Unpb Flora Of Missouri Database. G. Yatskievych, Missouri Botanical Garden, P.O. Box 299, St. Louis, Mo. 63166-0299. 314-577-9522. |
004 | Unpb Missouri Department Of Conservation Heritage Database. P.O. Box 180, Jefferson City, Missouri 65102. 573-751-4115. |
005 | Usda, Nrcs. 2001 The Plants Database, Version 3.1 (Http://Plants>Usda>Gov). National Plant Data Center, Baton Rouge, La 70874-4490 Usa. |