Name: |
- Drosera, from the Greek, droseros
(droseros), "dewy, watery"
- intermedia, from the Latin, "intermediate"
- Common Name, from the shape of the leaf
- Other common names include: Oblong-leaved Sundew, Spoonleaf Sundew,
Liden Soldug (Dan), Pikkukihokki (Fin), Rossolis intermédiaire
(Fr), Dealt Ruaidhe (Gaelic), Mittlerer Sonnentau (Ger),
Dikesoldogg (Nor), Småsileshår, Liten Daggört
(Swe)
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Taxonomy: |
- Kingdom Plantae, the Plants
- Division Magnoliophyta, the Angiosperms (flowering plants)
- Class Magnoliopsida, the Dicotyledons
- Subclass Dilleniidae
- Order Nepenthales
- Family Droseraceae, the Sundews
- Genus Drosera, the Sundews
- Taxonomic Serial Number: 22013
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Description: |
- A short-lived, insectivorous perennial herb of open bogs
- Leaves a basal rosette. Blades 2-3 times as long as wide;
petioles smooth, ¾"-2" long. Upper surface of blades
covered with reddish, glandular hairs tipped with a sticky, glutinous
secretion that traps insects.
- Stem
- Roots
- Flowers white, several borne on one side of a leafless
stalk, the stalk growing from side of plant base and curving upward
to 8" tall.
- Sepals 5, 3mm-4mm long
- Petals 5, white, 4mm-5mm long
- Stamens 5
- Pistil of 3 styles
- Fruit a dry capsule containing many seeds
- Seed tiny, red brown, and covered with small bumps, to 1mm
long.
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Identification: |
- Unmistakable as a Sundew; nothing else like it in the North Country.
- Distinguished from the other North Country Sundew, the Round Leaf
Sundew (Drosera rotundifolia) by
the oblong, rather than round, leaf.
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Distribution: |
- Circumboreal; Newfoundland to Minnesota, Montana, and Idaho.
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Habitat: |
- Low places in open bogs, sandy shores; often in shallow water.
- Very well adapted to the nutrient deficient "soils" of northern
bogs.
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Associates: |
- Trees: Tamarack (Larix
laricina), Black Spruce (Picea
mariana), White Cedar (Thuja
occidentalis)
- Shrubs: Bog Rosemary (Andromeda
glaucophyllum), Bog Birch (Betula
pumila), Leatherleaf (Chamaedaphne
calyculata), Bog Laurel (Kalmia
polifolia), Labrador Tea (Ledum
groenlandicum), Sweet Gale (Myrica
gale), Willows (Salix spp.), Small Cranberry (Vaccinium
oxycoccos)
- Herbs: Bluejoint Reedgrass (Calamagrostis
canadensis), Sedges (Carex spp.), Sheathed Cottonsedge
(Eriophorum vaginatum),
Buckbean (Menyanthes trifoliata),
Pitcher Plant (Sarracenia purpurea),
- Ground Covers: Aulacomnium palustre, Schreber's Feathermoss
(Pleurozium schreberi),
Polytrichum juniperinum, Sphagnum Mosses (Sphagnum spp.)
- Mammals: Moose (Alces alces)
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History: |
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Uses: |
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Reproduction: |
- Reproduces by seed and vegetatively by rhizomes
- Flowers July-September
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Propagation: |
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Cultivation: |
- Hardy to USDA Zone 3 (average minimum annual temperature -40ºF)
- Cultural Requirements
- Full sun preferred
- Soil: Sphagnum peat moss or a mix with up to 50% sand.
- Water must be continually available to the roots. Distilled or
rainwater preferred; avoid hard or softened tap water.
- Fertilization not needed or recommended. Plants are easily burned
unless fertilizer is highly diluted.
- Good for an acidic peat bog garden if you've got one. Can be
grown in containers set in shallow trays of water.
- Available by mail order from specialty suppliers.
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Links: |
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Comments: |
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Last updated on
26 February, 2004
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