Dichanthelium depauperatum (Muhl.) Gould

starved rosette-panicgrass

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New England Distribution

Adapted from BONAP data

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North America Distribution

Adapted from BONAP data

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Facts About

Starved rosette-panicgrass inhabits dry open woodlands, grasslands, and rocky and sandy sites. Like the other rosette-panicgrasses, it produces normal (cleistogamous) flowers initially, then later in the season it produces self-fertilizing (chasmogamous) flowers on small inflorescences that are usually hidden within the sheathes. Both types of flowers produce viable seeds.

Habitat

Cliffs, balds, or ledges, grassland, talus and rocky slopes, woodlands

Characteristics

Habitat
terrestrial
New England state
  • Connecticut
  • Maine
  • Massachusetts
  • New Hampshire
  • Rhode Island
  • Vermont
Leaf blade width
1–4 mm
Inflorescence branches
the flowers are attached to branches rather than to the main axis of the inflorescence
Spikelet length
3.2–4.3 mm
Glume relative length
both glumes are as long or longer than all of the florets
Awn on glume
the glume has no awn
One or more florets
  • there is more than one floret per spikelet
  • there is one floret per spikelet
Lemma awn length
0 mm
Leaf ligule length
0.5–1.5 mm
Show All Characteristics
  • Flowers
    Anther number
    Up to 3
    Awn on glume
    the glume has no awn
    Bristles below spikelets
    no
    Floret lower bract texture
    the lemma is hard and firm
    Floret number
    1–2
    Floret types within spikelet
    • NA
    • there are at least two distinct forms of florets within one spikelet
    Glume awn length
    0 mm
    Glume relative length
    both glumes are as long or longer than all of the florets
    Glume shape
    the glume is flat or curved in cross-section
    Glume veins
    • 1
    • 3
    • 5
    • 7 or more
    Glumes per spikelet
    2
    Inflorescence arrangement
    the spikelets are uniform
    Inflorescence axis orientation
    the inflorescence axis is straight
    Inflorescence branches
    the flowers are attached to branches rather than to the main axis of the inflorescence
    Inflorescence length
    30–60 mm
    Inflorescence type (general)
    the spikelets are borne on stalks or on branches
    Inflorescence type (specific)
    the inflorescence is branched, and the branches do NOT both grow from the same side of the plant AND look like spikes
    Inflorescence width
    15–30 mm
    Inforescence position
    • the spikelets are mainly carried at the end of the stem
    • the spikelets are mainly found at the nodes, in the axils of leaves, along the stem
    Lemma awn base
    NA
    Lemma awn coiled
    NA
    Lemma awn length
    0 mm
    Lemma awn number
    the lemma has no awn
    Lemma awn orientation
    NA
    Lemma cross-section
    the lemma is flat or rounded if you cut across the midpoint
    Lemma hairs
    • the lemma has fine hairs between the veins
    • the lemma is hairless between the veins
    Lemma surface
    the surface of the lemma is relatively smooth (not counting any longitudinal veins or hairs)
    Lemma tip
    the lemma tip is a simple point, with or without an awn (long narrow extension ending in a point)
    Lemma vein number
    • 3
    • 5
    • 7 or more
    Lower glume length
    1.2–1.6 mm
    One or more florets
    • there is more than one floret per spikelet
    • there is one floret per spikelet
    Palea length
    2.2–2.5 mm
    Palea relative length
    palea is one half to fully as long as lemma
    Spikelet axis tip
    there is no extension of the spikelet axis beyond the tip of the spikelet
    Spikelet disintegration
    the spikelet breaks off below the glumes
    Spikelet length
    3.2–4.3 mm
    Spikelet number per node
    0
    Spikelet pedicel
    the spikelets have pedicels
    Spikelet shape
    the spikelets are elliptic (widest in the middle, tapering to the ends) in profile
    Spikelet width
    1–1.7 mm
    Spikelets spiny
    the spikelets do not appear spiny
    Tip of glume
    the tip of the glume is not divided (though it may have an awn on it)
    Upper glume length
    3.2–4.3 mm
    Upper glume relative length
    the upper glume is more than one half as long as the lowest lemma
    Upper glume shape
    the upper glume is widest at or below the middle
  • Fruits or seeds
    Groove on seed
    the caryopsis does not have a groove on it
    Seed length
    1.5–1.8 mm
  • Growth form
    Horizontal rooting stem
    no
    Lifespan
    the plant lives more than two years
    Rhizomes
    no
    Roots
    the plant has a root mass with a hardened top
  • Leaves
    Basal leaves
    the plant has large or prominent tufts of leaves at the base of the flowering stem
    Leaf auricles
    the leaves do not have auricles
    Leaf blade cross-section
    the leaf blade is more or less flat in cross-section, or slightly folded or rolled inwards
    Leaf blade hairs
    • the leaf blade is hairless, but it may have tiny prickles that give it a sand-papery feel
    • the leaf blade is hairy
    Leaf blade length
    6–15 cm
    Leaf blade texture
    the leaf blade is rough and sandpapery
    Leaf blade width
    1–4 mm
    Leaf ligule length
    0.5–1.5 mm
    Leaf ligule type
    the leaf ligule is in the form of fine hairs
    Leaf margin glands
    there are no glands along the edges of the leaf blade
    Leaf sheath closed around stem
    the margins of the leaf sheath are overlapping and not fused together except in the basal half (or less)
    Leaf sheath hairs
    • there are hairs on the surface of the leaf sheath
    • there are no hairs on the surface of the leaf sheath
  • Place
    Habitat
    terrestrial
    New England state
    • Connecticut
    • Maine
    • Massachusetts
    • New Hampshire
    • Rhode Island
    • Vermont
    Specific habitat
    • cliffs, balds, or ledges
    • grasslands
    • talus or rocky slopes
    • woodlands
  • Stem, shoot, branch
    Plant height
    10–45 cm
    Roots at lower stem nodes
    no
    Stem hairs
    the stem has hairs on it
    Stem node number
    6–12
    Stem orientation
    • the stems are upright
    • the stems trail at the base, but turn upwards at the tips
    Stem spacing
    the stems grow close together in compact clusters or tufts

Wetland Status

Not classified

New England Distribution and Conservation Status

Distribution

Connecticut
present
Maine
present
Massachusetts
present
New Hampshire
present
Rhode Island
present
Vermont
present

Conservation Status

Exact status definitions can vary from state to state. For details, please check with your state.

Massachusetts
unranked (S-rank: SNR)
Vermont
uncommon to fairly widespread (S-rank: S3S4)

Native to North America?

Yes

Sometimes Confused With

Dichanthelium linearifolium:
spikelets rounded near the apex, the longer, outer scales not surpassing the inner scales (vs. D. depauperatum, with spikelets pointed at the apex, the longer, outer scales surpassing the inner scales).

Synonyms

  • Panicum depauperatum Muhl.
  • Panicum depauperatum Muhl. var. psilophyllum Fern.

Family

Poaceae

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Information from Dichotomous Key of Flora Novae Angliae

6.  Dichanthelium depauperatum (Muhl.) Gould N

starved rosette-panicgrass. Panicum depauperatum Muhl.; P. depauperatum Muhl. var.  psilophyllum Fern. • CT, MA, ME, NH, RI, VT. Dry-mesic to xeric soils of woodlands, rocky slopes, balds, grasslands, and open, sandy areas.