Bromus catharticus (Introduced)
|
Bromus catharticus Vahl, Symb. Bot. 2: 22 1791. (Syn: Bromus angustatus Pilg.; Bromus bolivianus Renvoize; Bromus bolivianus Hack. ex Buchtien; Bromus breviaristatus (Hook.) Thurb. [Illegitimate]; Bromus brongniartii Kunth; Bromus catharticus subsp. striatus (Hitchc.) Pinto; Bromus haenkeanus (J.Presl) Kunth; Bromus mathewsii Steud.; Bromus mucronatus Willd. ex Steud. [Invalid]; Bromus oregonus Nutt. ex Hook. f.; Bromus preslii Kunth; Bromus schraderi Kunth [Illegitimate]; Bromus schraderi var. lasiophyllus Goiran .; Bromus strictus Brongn. [Illegitimate]; Bromus unioloides Kunth; Bromus unioloides (Willd.) Kunth ex Raspail [Illegitimate] ……………….; Bromus willdenowii Kunth ……; ………..);
. Venezuela to S. South America: Argentina Northeast, Argentina Northwest, Argentina South, Bolivia, Brazil South, Brazil Southeast, Brazil West-Central, Chile Central, Chile North, Chile South, Colombia, Ecuador, Juan Fernández Is., Paraguay, Peru, Uruguay, Venezuela; Introduced into: Alabama, Alberta, Algeria, Arizona, Arkansas, Austria, Azores, Belgium, Bermuda, California, Canary Is., Cape Provinces, Cape Verde, Central European Rus, Chatham Is., China North-Central, China South-Central, China Southeast, Colorado, Costa Rica, Cyprus, Czechoslovakia, District of Columbia, Dominican Republic, East European Russia, East Himalaya, Easter Is., Egypt, Ethiopia, Falkland Is., Florida, France, Free State, Georgia, Germany, Guatemala, Haiti, Hawaii, Illinois, Inner Mongolia, Iowa, Iran, Jamaica, Japan, Jawa, Kansas, Kazakhstan, Kentucky, Kenya, Kermadec Is., Khabarovsk, Korea, Kriti, Kuwait, KwaZulu-Natal, Labrador, Lebanon-Syria, Lesotho, Louisiana, Madeira, Maryland, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southwest, Mississippi, Missouri, Morocco, Namibia, Nebraska, Nepal, Nevada, New Caledonia, New Jersey, New Mexico, New South Wales, New York, New Zealand North, New Zealand South, Norfolk Is., North Carolina, North Dakota, North European Russi, Northern Provinces, Northwest European R, Ohio, Oklahoma, Ontario, Oregon, Pakistan, Palestine, Panamá, Pennsylvania, Portugal, Primorye, Queensland, Rwanda, Réunion, Saudi Arabia, Sicilia, South Australia, South Carolina, South Dakota, South European Russi, Spain, Sri Lanka, St.Helena, Swaziland, Tadzhikistan, Taiwan, Tanzania, Tasmania, Tennessee, Texas, Transcaucasus, Trinidad-Tobago, Tristan da Cunha, Tunisia, Uganda, Ukraine, Utah, Victoria, Virginia, West Himalaya, Western Australia, Western Sahara, Xinjiang, Zimbabwe as per POWO; .
Common name: Rescue Grass, Prairie grass, Annual prairie grass, Brome grass
.
Tall american grass widely naturalised in many parts of the world, easily differentiated from other species by taller habit, larger spikelets with strongly compressed and keeled lemmas.
.
Erect or ascending up to 1.10 cm tall with lager leaves reaching 25 cm in length and up to 9 mm in breadth; panicles up to 45 cm long, spreading; spikelets 5-12 flowered, 2-4 cm long, strongly laterally compressed with lemmas overlapping; glames 10-16 mm long, lemmas up to 20 mm long, compressed and sharply keeled, margin hyaline, 10-112 nerved, nerves scabrous, 2-toothed.
.
Nice one Sir. I have seen this species in my area but haven’t photographed it.
Poaceae, Cyperaceae and Juncaceae Week ::Poaceae: Bromus sp. from Chakrata-NS 07: Attachments (2). 3 posts by 2 authors.
This one was shot from Chakrata area in 2011, I hope this is Bromus sp. I have only these pics, no leaf pictures were taken..please id.. Bromus catharticus (B. unioloides)
.
Poaceae, Cyperaceae and Juncaceae Week :: Poaceae » Bromus catharticus from ooty :: MK02 : Attachments (7). 2 posts by 2 authors. Bromus unioloides = B.catharticus
Bromus catharticus could be considered. *Bromus* for sure but cant say about species. Might be *catharticus *as Sir said.* * even i guess Bromus catharticus . Bromus catharticus Vahl from Kashmir: Common names: Prairrie grass, rescue grass
Tall american grass widely naturalised
in many parts of the world, easily differentiated from other species by taller habit, larger spikelets with strongly compressed and keeled lemmas. Erect or ascending up to 1.10 cm tall with lager leaves reaching 25 cm in length and up to 9 mm in breadth; panicles up to 45 cm long, spreading; spikelets 5-12 flowered, 2-4 cm long, strongly laterally compressed with lemmas overlapping; glames 10-16 mm long, lemmas up to 20 mm long, compressed and sharply keeled, margin hyaline, 10-112 nerved, nerves scabrous, 2-toothed. .    Bromus catharticus: 3 high res. images. Location: Kukgam, Kashmir Any image showing a complete plant? 2 high res. images. .   I’d request for this Poa species of grass: 2 high res. images. Location: Kulgam, Kashmir Any image showing complete plant? 1 high res. image. Your last image is again different of Poa pratensis and Lolium, original two images seem Bromus catharticus .
     Please help I.D. this grass: 5 images. Kindly help ID this grass which is a troublesome weed.
Habitat: Wild in untended fields in Rawathpora Srinagar
Habit: Tall herb upto 3 feet tall
Dates on which photos were taken are mentioned in the caption.
All photos under CC license (Attribution only required).
Bromus catharticus (B.unioloides)
Photo of ovary with what looks like a bifid hairy stigma
3 anthers on very short stamens
As the stamens are very short and anthers totally enclosed by palea and lemma I wonder if it is self pollinated.
Am asking it just out of curiosity as I am totally ignorant about grasses.
Please check Bromus catharticus During anthesis (flower opening), the lodicules will push the lemma and palea apart and the stamens will elongate and the anthers will protrude out of the floret. The stigmas of the same floret matures at a different time. Thus cross pollination is favoured. Many thanks for your kind explanation.
So far in spite of my best efforts I have yet to see a spike in which flowers have undergone anthesis and have protruding anthers. Perhaps it is still early. I will keep looking and if I find one I will post a photo.
. |
