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Panicum capillare or P. hillmanii

An exotic invasive panic grass at Aranda Bushland

Panicum capillare or P. hillmanii at Aranda Bushland - 18 Mar 2020
Panicum capillare or P. hillmanii at Aranda Bushland - 18 Mar 2020
Panicum capillare or P. hillmanii at Aranda Bushland - 18 Mar 2020
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Identification history

Panicum capillare or P. hillmanii 25 Mar 2020 michaelb
Panicum capillare or P. hillmanii 25 Mar 2020 CathB

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Author's notes

Huge infestation of this and other weeds all along this gully. Heavy runoff from the hailstorm of 20 January seems to have brought this grass from Cook horse paddocks. There are also large numbers along the roadside on Bindubi St and in the Mt Painter Wildflower Triangle.

4 comments

   27 Mar 2020
Cath - I also thought I saw a huge infestation on Dudley St grasslands but was unsure how to tell from Panicum effusum - have you got ant tips
Mike wrote:
   27 Mar 2020
NSW DPI 'Grasses of the NSW tablelands' says Panicum capillare is an annual with 5-18mm wide leaves and membranous ligules that have shortly-hairy tips while Panicum effusum is a perennial with 2-5mm wide leaves and hairy ligules.
CathB wrote:
   27 Mar 2020
I'd say the main difference is the hairiness. P. capillare/hillmanii (which we have been calling Witchgrass for convenience) is very hairy all over - leaf sheaths and both sides of the blades. It looks 'furry'. Most parts of P effusum are relatively smooth. Its hairs are shorter. The margins of effusum leaf blades have widely and regularly spaced hairs that have noticeable tubercles at the base. The hairs on the Witchgrass blades are much more crowded and irregular. If you look at the base of the plant, Witchgrass tends to have a lot of red-purple and is robust looking (although soft to the touch). P effusum is all green and is more gracile. And in general, Witchgrass is a paler green and the leaves are broader. Around here, the P effusum panicles have already spread, although they are still tightly bunched in Witchgrass (although they did open eventually last year).
   28 Mar 2020
Thanks Cath very helpful - the plants I saw at Dudley street seem to fit the description of Witchgrass except for the degree of hairiness can you please check the following sighting for me
Unidentified on 20 Mar 2020
Thanks

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Nearby sightings

Page 1 of 1 pages - image sightings only 644 0 41

Argiope protensa (Long-tailed Argiope) at Aranda Bushland - 5 Mar 2021 by CathB Cerdistus varifemoratus (Robber fly) at Aranda Bushland - 7 Jan 2021 by CathB Backobourkia sp. (genus) (An orb weaver) at Aranda Bushland - 26 Dec 2020 by CathB Perginae sp. (subfamily) (Unidentified pergine sawfly) at Aranda Bushland - 26 Dec 2020 by CathB Jotus auripes (Jumping spider) at Aranda Bushland - 6 Sep 2020 by CathB Jotus auripes (Jumping spider) at Aranda Bushland - 6 Sep 2020 by CathB Jotus auripes (Jumping spider) at Aranda Bushland - 15 May 2020 by CathB Rhadinosomus lacordairei (Thin Strawberry Weevil) at Aranda Bushland - 18 Dec 2019 by CathB Yoyetta timothyi (Brown Firetail Cicada) at Aranda Bushland - 18 Dec 2019 by CathB Mantispidae (family) (Unidentified mantisfly) at Aranda Bushland - 26 Nov 2019 by CathB Rhinotia sp. (genus) (Unidentified Rhinotia weevil) at Aranda Bushland - 20 Nov 2019 by CathB Agriopocoris sp. (genus) (Coreid bug) at Aranda Bushland - 30 Oct 2019 by CathB Eusemocosma pruinosa (A Concealer moth) at Aranda Bushland - 24 Oct 2019 by CathB Stagmatophora argyrostrepta (A cosmet moth) at Aranda Bushland - 24 Oct 2019 by CathB Jotus auripes (Jumping spider) at Aranda Bushland - 11 Sep 2019 by Harrisi Salticidae sp. 'Golden palps' (Unidentified jumping spider) at Aranda Bushland - 2 Sep 2019 by CathB Mituliodon tarantulinus (Prowling spider) at Aranda Bushland - 2 Sep 2019 by CathB Tettigoniidae sp. (family) (Unidentified katydid) at Aranda Bushland - 22 Aug 2019 by CathB Eurepa marginipennis (Mottled bush cricket) at Aranda Bushland - 17 Aug 2019 by CathB Nabis sp. (genus) (Damsel bug) at Aranda Bushland - 16 Aug 2019 by CathB Mutillidae sp. (family) (Unidentified 'velvet ant') at Aranda Bushland - 31 Jul 2019 by CathB Goniaea opomaloides (Mimetic Gumleaf Grasshopper) at Aranda Bushland - 31 Jul 2019 by CathB Euryopis umbilicata (Striped tick spider) at Aranda Bushland - 30 Jul 2019 by CathB Jotus auripes (Jumping spider) at Aranda Bushland - 29 Apr 2019 by CathB Eurepa marginipennis (Mottled bush cricket) at Aranda Bushland - 4 Apr 2019 by CathB Mutillidae sp. (family) (Unidentified 'velvet ant') at Aranda Bushland - 4 Apr 2019 by CathB Chrysomya sp. (genus) (A green/blue blowfly) at Aranda Bushland - 4 Apr 2019 by CathB Deliochus pulcher (Beautiful Deliochus spider) at Aranda Bushland - 25 Dec 2018 by CathB Eleale pulchra (Clerid beetle) at Aranda Bushland - 25 Nov 2018 by CathB Sextius virescens (Acacia Tree Hopper, Acacia Horned Treehopper) at Aranda Bushland - 22 Feb 2018 by CathB Calomela bartoni (Acacia Leaf Beetle) at Aranda Bushland - 22 Feb 2018 by CathB Chalcididae sp. (family) (Unidentified chalcid wasp) at Aranda Bushland - 21 Feb 2018 by CathB Galanga labeculata (Double-spotted cicada) at Aranda Bushland - 12 Feb 2018 by CathB Acyphas semiochrea (Omnivorous Tussock Moth) at Aranda Bushland - 11 Feb 2018 by CathB Eurystomus orientalis (Dollarbird) at Aranda Bushland - 4 Nov 2017 by CathB Todiramphus sanctus (Sacred Kingfisher) at Aranda Bushland - 1 Nov 2017 by CathB
Argiope protensa (Long-tailed Argiope) at Aranda Bushland - 5 Mar 2021 by CathB
Cerdistus varifemoratus (Robber fly) at Aranda Bushland - 7 Jan 2021 by CathB
Backobourkia sp. (genus) (An orb weaver) at Aranda Bushland - 26 Dec 2020 by CathB
Perginae sp. (subfamily) (Unidentified pergine sawfly) at Aranda Bushland - 26 Dec 2020 by CathB
Jotus auripes (Jumping spider) at Aranda Bushland - 6 Sep 2020 by CathB
Jotus auripes (Jumping spider) at Aranda Bushland - 6 Sep 2020 by CathB
Jotus auripes (Jumping spider) at Aranda Bushland - 15 May 2020 by CathB
Rhadinosomus lacordairei (Thin Strawberry Weevil) at Aranda Bushland - 18 Dec 2019 by CathB
Yoyetta timothyi (Brown Firetail Cicada) at Aranda Bushland - 18 Dec 2019 by CathB
Mantispidae (family) (Unidentified mantisfly) at Aranda Bushland - 26 Nov 2019 by CathB
Rhinotia sp. (genus) (Unidentified Rhinotia weevil) at Aranda Bushland - 20 Nov 2019 by CathB
Agriopocoris sp. (genus) (Coreid bug) at Aranda Bushland - 30 Oct 2019 by CathB
Eusemocosma pruinosa (A Concealer moth) at Aranda Bushland - 24 Oct 2019 by CathB
Stagmatophora argyrostrepta (A cosmet moth) at Aranda Bushland - 24 Oct 2019 by CathB
Jotus auripes (Jumping spider) at Aranda Bushland - 11 Sep 2019 by Harrisi
Salticidae sp. 'Golden palps' (Unidentified jumping spider) at Aranda Bushland - 2 Sep 2019 by CathB
Mituliodon tarantulinus (Prowling spider) at Aranda Bushland - 2 Sep 2019 by CathB
Tettigoniidae sp. (family) (Unidentified katydid) at Aranda Bushland - 22 Aug 2019 by CathB
Eurepa marginipennis (Mottled bush cricket) at Aranda Bushland - 17 Aug 2019 by CathB
Nabis sp. (genus) (Damsel bug) at Aranda Bushland - 16 Aug 2019 by CathB
Mutillidae sp. (family) (Unidentified 'velvet ant') at Aranda Bushland - 31 Jul 2019 by CathB
Goniaea opomaloides (Mimetic Gumleaf Grasshopper) at Aranda Bushland - 31 Jul 2019 by CathB
Euryopis umbilicata (Striped tick spider) at Aranda Bushland - 30 Jul 2019 by CathB
Jotus auripes (Jumping spider) at Aranda Bushland - 29 Apr 2019 by CathB
Eurepa marginipennis (Mottled bush cricket) at Aranda Bushland - 4 Apr 2019 by CathB
Mutillidae sp. (family) (Unidentified 'velvet ant') at Aranda Bushland - 4 Apr 2019 by CathB
Chrysomya sp. (genus) (A green/blue blowfly) at Aranda Bushland - 4 Apr 2019 by CathB
Deliochus pulcher (Beautiful Deliochus spider) at Aranda Bushland - 25 Dec 2018 by CathB
Eleale pulchra (Clerid beetle) at Aranda Bushland - 25 Nov 2018 by CathB
Sextius virescens (Acacia Tree Hopper, Acacia Horned Treehopper) at Aranda Bushland - 22 Feb 2018 by CathB
Calomela bartoni (Acacia Leaf Beetle) at Aranda Bushland - 22 Feb 2018 by CathB
Chalcididae sp. (family) (Unidentified chalcid wasp) at Aranda Bushland - 21 Feb 2018 by CathB
Galanga labeculata (Double-spotted cicada) at Aranda Bushland - 12 Feb 2018 by CathB
Acyphas semiochrea (Omnivorous Tussock Moth) at Aranda Bushland - 11 Feb 2018 by CathB
Eurystomus orientalis (Dollarbird) at Aranda Bushland - 4 Nov 2017 by CathB
Todiramphus sanctus (Sacred Kingfisher) at Aranda Bushland - 1 Nov 2017 by CathB

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Location information

Species information

  • Not Sensitive
  • Exotic
  • Noxious or High Risk Weed or Pest

Sighting information

  • 1,001 - 10,000 Abundance
  • 18 Mar 2020 01:02 PM Recorded on
  • CathB Recorded by

Additional information

  • True In flower
  • 10cm to 30cm Plant height

Record quality

  • Images or audio
  • More than one media file
  • Confirmed by an expert moderator
  • Nearby sighting(s) of same species
  • GPS evidence of location
  • Description
  • Additional attributes
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