No she does not.
I believe it is Rosetail.
rosetail is an elder in the first warrior series. she is not recorded in the allegiances but it says she defends the nursery and may have died. She is Thistleclaw and Sweetpaw's sister. (from Bluestar's prophecy)
Rosetail dies in the "Warriors" series by Erin Hunter during a battle with the dogs. She bravely fights to protect her clan but sustains fatal injuries in the process. Her death is a poignant moment that highlights the dangers faced by the cats and the sacrifices they make for their families and clans.
Swiftbreeze. NOT poppydawn, she is the mother to thistleclaw rosetail and and sweetpaw. Goldenflower is his littermate. His mother is Speckletail and his father is Smallear.
Thiscleclaw's mother is Poppydawn. His two sisters are Sweetpaw and Rosetail. To find out more, read Bluestar's Prophecy.
No, she has kits with fireheart.
Brambleclaw has no kits biologically, since it has been revealed that Squirrelflight did not bear him kits; instead, the kits were her sister Leafpool's. However, his adopted kits (the aforementioned kits) would be Jayfeather, Lionblaze, and Hollyleaf (presumed deceased).
Spiderleg has three kits named Rosepetal, Toadstep, and Daisypetal.
Dovewing and Foxleap do not have kits together, nor become mates.
Moonflower's kits are Bluestar and Snowfur.
Who are Fire Stars kits
No, he doesn't have any kits.