Piptochaetium avenaceum

ClassificationMonocots
FamilyPoaceae
Family (Traditional)Poaceae
GenusPiptochaetium
Species:Piptochaetium avenaceum (L.) Parodi
Common NameBlackseed Speargrass
Growth Habitgraminoid
Plant Notes**
CharacteristicsArmaments: No; Milky Sap: No; Photosynthetic: Yes; Stipules: No; Woody Herbaceous: Herbaceous; Natural Area Presence: FCFSP; Natural Area Presence: FG; Natural Area Presence: GRSM; Natural Area Presence: LGS; Natural Area Presence: LRC; Natural Area Presence: LULA; Natural Area Presence: NCCGSNA; Natural Area Presence: ObedWSR; Natural Area Presence: RCSP; Natural Area Presence: SGSNA; Natural Area Presence: TRG; Natural Area Presence: WOLF; Duration: Perennial; General Ecology: Terrestrial; Growth Habit: graminoid; Moisture Requirements: Xeric; Moisture Requirements: Sub-xeric; Moisture Requirements: Dry-mesic; Region of Origin: North America; Reproductive Phenology: March; Reproductive Phenology: April; Reproductive Phenology: May; Reproductive Phenology: June; Leaf Arrangement: alternate; Leaf Arrangement: basal; Leaf Complexity: simple; Leaf Dissection: 0; Leaf Persistance: Deciduous; Leaf Petiole Type: sessile; Leaf Type: grass-like; Leaf Venation: parallel; Leaflet Margins: entire; Leaflet Number: 0; Base Flower Color: Brown (incl. Maroon); Base Flower Color: Green; Fruit Dehiscence: No; Fruit Type: Caryopsis; Fruit Type: Grain; Fruit Wet/Dry: Dry; Hypanthium Present: No; Ovary Position: Superior; Overall Flower Symmetry: N/A; Perianth Present: No; Placentation Type: Parietal; Placentation Type: Basal; Sexuality: monoclinous; Sporangium Arrangement: N/A
C value 6
StatusNative; AGCP (UPL), EMP (UPL) (NWPL); TN[SNR] KY[S4] (State Rank); G5 (Global Rank)
Specimen(s) View and Download Specimen Details »

** Not applicable or data not available.
Featured Plant Photo

Species Distribution Map

This species has been reported in the counties highlighted in the interactive distribution map below. Click on a county to display the its name. Click the question mark icon () to view additional information about the ecoregions shown. In the map legend, there are links to toggle the visibility of the ecoregions and/or their labels. In addition, clicking on an ecoregion name will highlight that region on the map.

  • State Boundaries
  • Counties
  • Counties - Species Present
Ecoregions
  • Southeastern Plains
    • Blackland Prarie
  • Blue Ridge Mountains
  • Ridge and Valley
  • Cumberland Plateau
  • Cumberland Mountains
  • Allegheny Plateau
  • Interior Plateau
    • Bluegrass Region
    • Nashville Basin
    • Pennyroyal Karst Plain
    • Western Highland Rim
    • Eastern Highland Rim

Synonyms

SynonymFull Citation
Piptochaetium avenacellum Piptochaetium avenacellum Barkworth
Piptochaetium leianthum Piptochaetium leianthum (Hitchc.) Beetle
Stipa avenacea var. avenacea Stipa avenacea var. avenacea L.
Stipa avenacea var. bicolor Stipa avenacea var. bicolor Eaton & Wright
Stipa leiantha Stipa leiantha
Stipa virginica Stipa virginica Pers.

Specimens and Distribution

This species has been reported in the following counties by the herbaria listed. An overview of the individual specimens are provided in the table that follows. Click on the accession number to view details; click on column headers to sort.

Counties included on distribution map: Bell (KY), Knox (KY), Laurel (KY), McCreary (KY), Pulaski (KY), Whitley (KY), Bradley (TN), Carter (TN), Cumberland (TN), Franklin (TN), Hamilton (TN), Marion (TN), Morgan (TN), Pickett (TN), Polk (TN), Putnam (TN), Roane (TN), Sullivan (TN), Unicoi (TN), Van Buren (TN)

Herbaria represented by specimen data listed below: APSC, BOON, EKY, ETSU, HTTU, KNK, MEM, UCHT, UOS, UTM

Range of years during which specimens were collected: 1979 - 2018

Accession No. (click for full details) County State Coll. Date Collector &
Collection No.		 Herbarium &
Herbarium Name Used
31234100154028 Laurel Kentucky 25 May 1985 Ralph L. Thompson
85-213		 EKY
Piptochaetium avenaceum
31234100153954 Laurel Kentucky 22 May 1993 Randy L. Mears
93-239		 EKY
Piptochaetium avenaceum
31234100154101 Roane Tennessee 10 May 1979 Henry R. DeSelm
475		 EKY
Piptochaetium avenaceum
31234100154069 Pulaski Kentucky 10 May 1979 Richard H. Hannan
1530		 EKY
Piptochaetium avenaceum
31234100154010 Knox Kentucky 17 May 1979 Richard H. Hannan
1756		 EKY
Piptochaetium avenaceum
31234100154036 Laurel Kentucky 24 May 1989 Ralph L. Thompson
89-316		 EKY
Piptochaetium avenaceum
UCHT002457 Bradley Tennessee
UCHT
Piptochaetium avenaceum
UCHT002453 Polk Tennessee
UCHT
Piptochaetium avenaceum
UCHT002454 Polk Tennessee
UCHT
Piptochaetium avenaceum
UCHT002445 Hamilton Tennessee
UCHT
Piptochaetium avenaceum
UCHT002452 Polk Tennessee
UCHT
Piptochaetium avenaceum
UCHT002440 Pickett Tennessee
UCHT
Piptochaetium avenaceum
UCHT002449 Marion Tennessee
UCHT
Piptochaetium avenaceum
UCHT002455 Hamilton Tennessee
UCHT
Piptochaetium avenaceum
UCHT002446 Hamilton Tennessee
UCHT
Piptochaetium avenaceum
UCHT002458 Marion Tennessee
UCHT
Piptochaetium avenaceum
UCHT002456 Hamilton Tennessee
UCHT
Piptochaetium avenaceum
UCHT006384 Van Buren Tennessee
UCHT
Piptochaetium avenaceum
UCHT002459 Marion Tennessee
UCHT
Piptochaetium avenaceum
UCHT002451 Hamilton Tennessee
UCHT
Piptochaetium avenaceum
UCHT002441 Marion Tennessee
UCHT
Piptochaetium avenaceum
UCHT006288 Polk Tennessee
UCHT
Piptochaetium avenaceum
UCHT002448 Marion Tennessee
UCHT
Piptochaetium avenaceum
009804 Van Buren Tennessee
BOON
Piptochaetium avenaceum
009802 Hamilton Tennessee
BOON
Piptochaetium avenaceum
009803 Hamilton Tennessee
BOON
Piptochaetium avenaceum
APSC0094361 Laurel Kentucky
APSC
Piptochaetium avenaceum
APSC0070724 Pulaski Kentucky 12 Jun 1984 Max Medley
 APSC
Piptochaetium avenaceum
APSC0076975 Laurel Kentucky
APSC
Piptochaetium avenaceum
APSC0042894 Cumberland Tennessee
APSC
Piptochaetium avenaceum
APSC0079723 Pulaski Kentucky
APSC
Piptochaetium avenaceum
APSC0042899 Pickett Tennessee
APSC
Piptochaetium avenaceum
APSC0053519 Polk Tennessee
APSC
Piptochaetium avenaceum
APSC0092645 Pickett Tennessee
APSC
Piptochaetium avenaceum
APSC0042896 Polk Tennessee
APSC
Piptochaetium avenaceum
APSC0052935 Hamilton Tennessee
APSC
Piptochaetium avenaceum
APSC0093986 Bell Kentucky
APSC
Piptochaetium avenaceum
APSC0076983 Laurel Kentucky
APSC
Piptochaetium avenaceum
APSC0076180 Laurel Kentucky
APSC
Piptochaetium avenaceum
APSC0071899 Cumberland Tennessee
APSC
Piptochaetium avenaceum
APSC0086640 McCreary Kentucky
APSC
Piptochaetium avenaceum
APSC0074049 McCreary Kentucky
APSC
Piptochaetium avenaceum
APSC0074044 Whitley Kentucky
APSC
Piptochaetium avenaceum
APSC0074045 Bell Kentucky
APSC
Piptochaetium avenaceum
APSC0115283 Morgan Tennessee
APSC
Piptochaetium avenaceum
APSC0055599 Cumberland Tennessee
APSC
Piptochaetium avenaceum
APSC0080240 Whitley Kentucky
APSC
Piptochaetium avenaceum
APSC0094362 Laurel Kentucky
APSC
Piptochaetium avenaceum
HTTU025786 Cumberland Tennessee
HTTU
Piptochaetium avenaceum
HTTU024979 Cumberland Tennessee
HTTU
Piptochaetium avenaceum
HTTU019032 Putnam Tennessee
HTTU
Piptochaetium avenaceum
HTTU025788 Cumberland Tennessee
HTTU
Piptochaetium avenaceum
HTTU019026 Putnam Tennessee
HTTU
Piptochaetium avenaceum
HTTU019030 Putnam Tennessee
HTTU
Piptochaetium avenaceum
HTTU019028 Putnam Tennessee
HTTU
Piptochaetium avenaceum
HTTU019027 Putnam Tennessee
HTTU
Piptochaetium avenaceum
HTTU019031 Putnam Tennessee
HTTU
Piptochaetium avenaceum
HTTU025787 Cumberland Tennessee
HTTU
Piptochaetium avenaceum
HTTU019025 Putnam Tennessee
HTTU
Piptochaetium avenaceum
HTTU019029 Putnam Tennessee
HTTU
Piptochaetium avenaceum
UCHT038260 Polk Tennessee
UCHT
Piptochaetium avenaceum
UOS08103 Franklin Tennessee 13 May 2013 Ashley Block
 UOS
Piptochaetium avenaceum
UOS08105 Van Buren Tennessee 16 May 2001 Chris A. Fleming
 UOS
Piptochaetium avenaceum
UOS08102 Franklin Tennessee 23 May 2001 Mary P. Priestley
 UOS
Piptochaetium avenaceum
UOS08101 Franklin Tennessee 09 May 2001 Mary P. Priestley
 UOS
Piptochaetium avenaceum
UTM02644 Polk Tennessee
UTM
Piptochaetium avenaceum
ETSU003855 Carter Tennessee
ETSU
Piptochaetium avenaceum
ETSU003856 Pickett Tennessee
ETSU
Piptochaetium avenaceum
ETSU009307 Sullivan Tennessee 28 Apr 2018 Frosty Levy
 ETSU
Piptochaetium avenaceum
ETSU031788 Tennessee
ETSU
Piptochaetium avenaceum
ETSU003858 Pickett Tennessee
ETSU
Piptochaetium avenaceum
ETSU003857 Pickett Tennessee
ETSU
Piptochaetium avenaceum
HTTU036592 Putnam Tennessee
HTTU
Piptochaetium avenaceum
MEM011517 Bell Kentucky Raymond Athey
3050		 MEM
Piptochaetium avenaceum
N/A Carter Tennessee 08 May 2017 Frosty Levy
 ETSU
Piptochaetium avenaceum
N/A Unicoi Tennessee 30 Apr 2016 Frosty Levy
 ETSU
Piptochaetium avenaceum
31973000023159 McCreary Kentucky 16 May 1994 Thieret, John
57417		 KNK
Piptochaetium avenaceum
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Plant Photos

Piptochaetium avenaceum - Dwayne Estes
Piptochaetium avenaceum - Dwayne Estes
Piptochaetium avenaceum - Dwayne Estes
Piptochaetium avenaceum - Dwayne Estes
Piptochaetium avenaceum - Dwayne Estes
Piptochaetium avenaceum - Dwayne Estes
Piptochaetium avenaceum - Dwayne Estes
Piptochaetium avenaceum - Dwayne Estes
Piptochaetium avenaceum - Milo Pyne
Piptochaetium avenaceum - Milo Pyne
Piptochaetium avenaceum - Milo Pyne
Piptochaetium avenaceum - Milo Pyne
Piptochaetium avenaceum - Theo Witsell
Piptochaetium avenaceum - Theo Witsell
Piptochaetium avenaceum - Joey Shaw
Piptochaetium avenaceum - Joey Shaw
Piptochaetium avenaceum - Joey Shaw
Piptochaetium avenaceum - Joey Shaw
Piptochaetium avenaceum - Joey Shaw
Piptochaetium avenaceum - Joey Shaw
Piptochaetium avenaceum - Joey Shaw
Piptochaetium avenaceum - Joey Shaw
Piptochaetium avenaceum - Joey Shaw
Piptochaetium avenaceum - Joey Shaw