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Hi all, I think that GoBotany is the best plant ID resource for our area. Broad-leaved cattail (/Typha latifolia/): https://gobotany.newenglandwild.org/species/typha/latifolia/ ; has much wider leaves than narrow-leaved cattail (/Typha angustifolia/): https://gobotany.newenglandwild.org/species/typha/angustifolia/ I have also read that the narrow-leaved cattail and the hybrid have a space between the staminate and pistillate part of the inflorescence (2-4cm), while broad-leaved doesn't. However, it can be difficult to distinguish these two from the hybrids (at least in Ontario) because the hybrid tends to take on a variation of traits from the adults. this is also an interesting site for the comparison of the three species: http://www.bwsr.state.mn.us/wetlands/plantid/Forbs/scientific%20name/Typha%20compare%20cattail_comparison_08.pdf it is very hard to distinguish these species in Ontario - we've found that some individuals turn out to not follow these guidelines after genotyping them in the lab. I am going to collect leaf samples of my study specimens in NS and genotype them in lab instead of just relying on these traits to ID them. I hope this helps a bit. I had another inquiry: I've read that the flowering times for cattails in NS are between June 12-21 and between July 8-14. I'm guessing this is because northern populations might flower later, but wondering if anyone can confirm this. Also I'm wondering if anyone has any idea when cattails flower in the Amherst area. Best, Kat On Thu, May 4, 2017 at 7:24 PM, Fred Schueler <bckcdb@istar.ca <mailto:bckcdb@istar.ca>> wrote: On 5/4/2017 5:20 PM, Kathryn Tisshaw wrote: Thanks for your reply! Do you have the coordinates of the locations you found in 2010? * yes, I've sent you the 29 records from NB and NS. I hope NatureNS members can send you a lot more locations. For those not familiar with the differences among Cattail species maybe Kathryn can suggest a good identification page - simple googling just turns up only ugly pages which don't distinguish the kinds very clearly. fred. ======================================================= It is really strange - one of the researchers here was in Nova Scotia a few years ago and said she only found one patch of /T. angustifolia/ east of Quebec. I hope to find up to 10 sites so that I can investigate the habitat, flowering times, and pollen viability. We are thinking we might find some interesting results. Thanks for your help, Kat On Thu, May 4, 2017 at 3:31 PM, Fred Schueler <bckcdb@istar.ca <mailto:bckcdb@istar.ca> <mailto:bckcdb@istar.ca <mailto:bckcdb@istar.ca>>> wrote: On 5/4/2017 2:25 PM, Patrick Kelly quoted: I am contacting Nature Nova Scotia because I am about to embark on a journey to Nova Scotia to study cattails. My thesis involves examining differences between fertility and habitat preferences between broadleaf cattail (Typha latifolia), narrow-leaved cattail (T. angustifolia), and their hybrid (T. x glauca) in Nova Scotia and the Great Lakes area. I was wondering if there have been any recent observations of the non-native cattail, T. angustifolia. It seems like T. angustifolia is a lot rarer in Nova Scotia than in Ontario, and we want to investigate this strange phenomenon. This will help us in understanding the reproduction and habitat preferences of invasive species. Please let me know if you know anyone who might know where the non-native cattail is found. * I've also been interested in this problem, and I accumulated only about a dozen locations for T. angustifolia in Nova Scotia from our travels there in 2010. The same condition holds in New Brunswick, where the uncommonness of T. angustifolia and hybrids is considered unexceptional by local botanists - e.g. Gart Bishop <gartali@NBNET.NB.CA <mailto:gartali@NBNET.NB.CA> <mailto:gartali@NBNET.NB.CA <mailto:gartali@NBNET.NB.CA>>> - even while it strikes those of us from Ontario as astonishing. Going down the St Lawrence along the TransCanada, T. angustifolia continues to be abundant to Riviere du Loup, but once you're over the mountains to Edmundston it's uncommon all the way to Annapolis Royal. fred schueler Research Curator
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